Which Linux tool or command is surprisingly simple, powerful, and yet underrated?"
from mfat@lemmy.ml to linux@lemmy.ml on 03 Jan 15:09
https://lemmy.ml/post/24376606

Which Linux command or utility is simple, powerful, and surprisingly unknown to many people or used less often?

This could be a command or a piece of software or an application.

For example I’m surprised to find that many people are unaware of Caddy, a very simple web server that can make setting up a reverse proxy incredibly easy.

Another example is fzf. Many people overlook this, a fast command-line fuzzy finder. It’s versatile for searching files, directories, or even shell history with minimal effort.

#linux

threaded - newest

thejevans@lemmy.ml on 03 Jan 15:19 next collapse

jq?

BlastboomStrice@mander.xyz on 03 Jan 15:22 next collapse

Funny how this was one of the first tools I learnt once I “seriously” started my linux journey, lol

thingsiplay@beehaw.org on 03 Jan 15:39 next collapse

github.com/johnkerl/miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON

deadcream@sopuli.xyz on 03 Jan 16:18 next collapse

I use it occasionally but every time I need to do something a tiny bit more complex than “extract field from an object” I have to spend half an hour studying its manual, at which point it’s faster to just write a Python script doing exactly what I need it to do.

Nibodhika@lemmy.world on 04 Jan 10:19 collapse

Check out www.nushell.sh I use it for exactly that, i.e. complex extract and convert files

deadcream@sopuli.xyz on 04 Jan 10:41 collapse

I actually installed it recently out of curiosity, but I’m hesitant about learning its advanced features like that. At least jq is a standalone tool that’s more ubiquitous than nushell, so you can rely on it even in environments that you don’t fully control (e.g. CI like GitHub Actions). And if you use it in some public code/scripts then other people will be more familiar with it too.

pivot_root@lemmy.world on 03 Jan 18:39 collapse

yq can do both JSON and YAML :)

Static_Rocket@lemmy.world on 03 Jan 15:20 next collapse

+1 to caddy. There are some services that set safe headers following the recommendations outlined by Mozilla but others don’t control headers as strictly. Caddy is the only web server that I found that supports loose default header values. These values will be selected unless the upstream application specifies their own values.

You can do something similar in nginx but it requires playing with maps and has a little more indirection than I’d like.

Just wish caddy was capable of starting as root and stepping down permissions like Nginx. I have certs being managed by other tools and have to make sure they are installed and chowned for caddy’s use when they are cycled.

tensor_nightly69@lemmy.world on 03 Jan 17:13 collapse

I just started the process of switching from nginx Proxy Manager to Caddy yesterday, and even before setting up a single rule, I’m enjoying it more than NPM. Really wish I would have heard about it sooner!

themadcodger@kbin.earth on 04 Jan 03:14 collapse

I'm currently using NPM and don't have any problems with it for at least my use case. Is there something I'm missing out on never having tried Caddy, or is it one of those no need to switch if there's Nothing bugging you situations? That last bit is how I feel about Bazzite on the Steam Deck when people ask of they should switch.

Semi_Hemi_Demigod@lemmy.world on 03 Jan 15:25 next collapse

I’m a big fan of screen because it will let me run long-running processes without having to stay connected via SSH, and will log all the output.

I do a lot of work on customers’ servers and having a full record of everything that happened is incredibly valuable for CYA purposes.

Static_Rocket@lemmy.world on 03 Jan 15:28 next collapse

I’d recommend tmux for that particular use. Screen has a lot of extras that are interesting but don’t really follow the GNU mentality of “do one thing and do it well.”

kitnaht@lemmy.world on 03 Jan 15:57 next collapse

Tmux / Screen is like the emacs/vim of the modern day Linux I think.

Screen is more than capable, but for those who have moved to Tmux, they will absolutely advocate for it.

darklamer@lemmy.dbzer0.com on 03 Jan 16:53 collapse

When tmux was first released I was already so used to screen that I never really considered switching. What would some convincing arguments be for me to make the effort to switch now?

Static_Rocket@lemmy.world on 03 Jan 17:40 next collapse

Tmux was purpose built for terminal multiplexing. You can assign session names for organizing and manipulating multiple instances. Send keys to and read output from detached sessions. It’s easy to script.

darklamer@lemmy.dbzer0.com on 04 Jan 06:39 collapse

Tmux was purpose built for terminal multiplexing.

Was screen not purpose built for terminal multiplexing?

Static_Rocket@lemmy.world on 04 Jan 14:56 collapse

Sorry, it was, just not for exploring all of those instances at once. Should have called out the tiling function. Screen also built in a serial terminal emulator and started playing with a few other things.

notabot@lemm.ee on 03 Jan 20:38 next collapse

The thing that got me to switch was being able to maintain my pane layout between connections. The various window and pane management niceties (naming, swapping, listing and the like) got me to stay. Now you can keep your screen, but you’d have to pry tmux from my cold, dead, tty.

kablammy@sh.itjust.works on 06 Jan 01:08 collapse

This was a few years ago so maybe it has improved, but I found that screen would crash and lose my session history and layout too often. That was bad enough, but when it happened it had some bullshit error message about a dungeon roof falling in. I don’t mind some comedy in code or even the interface, but don’t make light of the user losing their stuff. I tried tmux and it is much more stable than screen was.

iii@mander.xyz on 03 Jan 15:47 next collapse

nohup is similar

pearsaltchocolatebar@discuss.online on 03 Jan 16:11 next collapse

I’ve had nohup fail to keep things running after my session ended quite frequently. It’s like it just goes to the next step in the process then gives up.

notabot@lemm.ee on 03 Jan 20:34 collapse

It’s likely that you’re using a systemd based system and the admin hasn’t enabled linger for your user.

pearsaltchocolatebar@discuss.online on 03 Jan 20:37 collapse

The servers are very locked down, so I’m sure that’s part of our compliance requirements. I haven’t looked into fixing it because I just wrote a script to hit Enter every 10 minutes to keep it alive.

notabot@lemm.ee on 03 Jan 20:40 collapse

Ha! Faking key presses, truly an elegant weapon for a more civilized age. If it works, it works.

pivot_root@lemmy.world on 03 Jan 18:38 collapse

It’s not as useful, sadly. Nohup disconnects standard input, output, and error. With screen or tmux, you can reattach them later.

gkaklas@lemmy.zip on 03 Jan 16:03 next collapse

There is also zellij, which can do the same but also has modern functionality specific for development workspaces!

(Although screen or tmux will still probably be more widely available on remote machines etc)

villainy@lemmy.world on 03 Jan 16:12 next collapse

Woah screen is seeing active development again? There was like a decade where it stagnated. So much so that different distros were packaging different custom feature patches (IIRC only Ubuntu had a vertical split patch by default?) Looking at it now, the new screen maintainers had to skip a version to not conflict with forks that had become popular.

When tmux stabilized I jumped ship immediately and never looked back.

tensor_nightly69@lemmy.world on 03 Jan 17:10 collapse

tmux with control mode in iterm is god mode for me on all my machines. Absolutely love it.

surfrock66@lemmy.world on 03 Jan 17:59 collapse

I know everyone likes tmux but screen is phenomenal. I have a .screenrc I deploy everywhere with a statusbar at the bottom, a set number of pre-defined tabs, and logging to a directory (which is cleaned up after 30 days) so I can go back and figure out what I did. Great tool.

dessalines@lemmy.ml on 03 Jan 15:27 next collapse

A few that I use every day:

Jumuta@sh.itjust.works on 03 Jan 15:48 next collapse

I heard about helix from you and I’ve used it for a year and a half or so now, it’s by far the best editor I’ve used so far and I can definitely vouch for it

dessalines@lemmy.ml on 03 Jan 16:27 collapse

Nice!

ComradeMiao@lemmy.dbzer0.com on 03 Jan 16:10 next collapse

Could you explain them in more depth? I opened them and don’t know

deadcream@sopuli.xyz on 03 Jan 16:25 next collapse

Fish is a replacement of bash that’s a bit more user friendly (has some cool auto completion features out of the box and more sane behaviour like handling of spaces when expanding variables). I personally started to use nutshell recently but unlike fish it’s very different from bash.

Starship is a “prompt” for various shells (that bit of text in terminal before you enter the command that shows current user and directory in bash). I haven’t used it but AFAIK it has many features like showing current time, integration with git, etc.

Ephera@lemmy.ml on 03 Jan 17:49 next collapse

Yep, here’s my Starship prompt, for example:
<img alt="" src="https://lemmy.ml/pictrs/image/7339a6db-abef-4490-a276-cde6c699dfdd.png">

So, I have it configured to show:

  • the exit code of the last command (if it’s non-zero),
  • the duration of the last command (if it’s longer than 2 seconds),
  • the time (when the last command ended),
  • the current directory,
  • the current Git branch, and it also shows some Git status information, for example the $ means I have something stashed,
  • and finally the technology in use in a repository/directory, so in this case that repo uses Rust and the compiler version is 1.83.
ComradeMiao@lemmy.dbzer0.com on 03 Jan 23:00 next collapse

Thanks for adding this. What does stashed mean

Ephera@lemmy.ml on 04 Jan 00:53 collapse

Oh, when you’re coding something in a Git repo and you realize that you need to make a different change before you continue coding (e.g. switch to a branch, pull newest changes, or just create a separate smaller commit for part of your change), then you can run git stash push to put away your current changes, then make your other change, and then run git stash pop to bring your ongoing changes back. I recommend reading git stash --help, if you want to use it.

Sometimes, though, you might end up just taking it into a different direction altogether or simply forget that you had something stashed. That’s when that indicator comes in handy. Because while you can have multiple things stashed, I do find it’s best not to keep them around for too long. If you do want to keep them for longer, then you can always create a branch and commit it as WIP onto there, so that you can push it onto a remote repo.

dil@lemmy.world on 04 Jan 18:52 collapse

This is sick!! Would you mind sharing your config?

Ephera@lemmy.ml on 04 Jan 20:24 collapse

Nope, I’m glad to share.

I personalized it from the “Gruvbox Rainbow” preset from here: starship.rs/presets/
So, you might prefer that, if you’re not, well, me.

You will need to set up a NerdFont, like the Starship installation guide says.

Here’s my configuration:

Spoiler

toml “$schema” = ‘https://starship.rs/config-schema.json’ format = “”" [$status](bg:color_red fg:color_fg0)\ [](fg:color_red bg:color_orange)\ [$cmd_duration](bg:color_orange fg:color_fg0)\ [](fg:color_orange bg:color_yellow)\ [$time](bg:color_yellow fg:color_fg0)\ [](fg:color_yellow)\ $line_break\ [$directory](bg:color_aqua fg:color_fg0)\ [](fg:color_aqua bg:color_blue)\ [$git_branch\ $git_status](bg:color_blue fg:color_fg0)\ [](fg:color_blue bg:color_bg3)\ [$c\ $rust\ $golang\ $nodejs\ $php\ $java\ $kotlin\ $haskell\ $python\ $docker_context](bg:color_bg3 fg:color_fg0)\ [](fg:color_bg3)\ $line_break\ $line_break"“” palette = ‘gruvbox_dark’ [palettes.gruvbox_dark] color_fg0 = ‘#ffffff’ color_bg1 = ‘#3c3836’ color_bg3 = ‘#665c54’ color_blue = ‘#458588’ color_aqua = ‘#689d6a’ color_green = ‘#98971a’ color_orange = ‘#d65d0e’ color_purple = ‘#b16286’ color_red = ‘#cc241d’ color_yellow = ‘#d79921’ [status] disabled = false symbol = “” format = ’ $symbol $status ’ [username] format = ’ $user ’ [directory] format = " $path " truncation_length = 3 truncation_symbol = “…/” [directory.substitutions] “Documents” = "󰈙 " “Downloads” = " " “Music” = "󰝚 " “Pictures” = " " “Projects” = "󰲋 " [git_branch] symbol = “” format = ’ $symbol $branch ’ [git_status] style = “bg:color_aqua” format = '$all_status$ahead_behind ’ [nodejs] symbol = “” format = ’ $symbol $version ’ [c] symbol = " " format = ’ $symbol $version ’ [rust] symbol = “” format = ’ $symbol $version ’ [golang] symbol = “” format = ’ $symbol $version ’ [php] symbol = “” format = ’ $symbol $version ’ [java] symbol = " " format = ’ $symbol $version ’ [kotlin] symbol = “” format = ’ $symbol $version ’ [haskell] symbol = “” format = ’ $symbol $version ’ [python] symbol = “” format = ’ $symbol $version ’ [cmd_duration] format = ’ 󱦟 $duration ’ [time] disabled = false time_format = “%R” format = ’  $time ’ [line_break] disabled = false

ComradeMiao@lemmy.dbzer0.com on 03 Jan 23:00 collapse

Thanks!

jennraeross@lemmy.world on 03 Jan 16:56 collapse

Helix is a terminal based text editor. It’s much like vim / neovim, but unlike those editors it’s good to go right out of the box, no configuration or plugins needed to make it work well.

Topgrade is one I haven’t used, but it looks like its intended purpose is to let you upgrade your apps with one command, even if you use multiple different package managers (I.e. if you were on Ubuntu, you could use it to upgrade your apt packages, at the same time as your snap packages, as well as flatpak, nix, and homebrew if you’ve added those.)

ComradeMiao@lemmy.dbzer0.com on 03 Jan 17:10 collapse

Thank you for explaining. I would never have understood topgrade without your example :)

Trent@lemmy.ml on 03 Jan 16:20 next collapse

Just commenting to give more love to helix. It’s my favorite “small quick edits” editor.

ObsidianZed@lemmy.world on 03 Jan 17:18 next collapse

I’ve actually been testing with fish recently coming from zsh, though I might wait until 4.0 fully releases before I make a more conclusive decision to move or not.

With that said, I remember looking through omf themes and stumbled onto Starship that branched off one of the themes and really liked the concept.

Feyd@programming.dev on 03 Jan 17:27 collapse

One thing that holds people back sometimes is that bash scripts that set environment variables don’t work by default. github.com/edc/bass is an easy solution

krolden@lemmy.ml on 04 Jan 03:47 next collapse

Helix is great thanks

SloppilyFloss@lemmy.ml on 04 Jan 08:00 next collapse

Once Helix gets plugin support and someone makes a Clojure REPL plugin as good as Conjure I am never touching vim again!

dessalines@lemmy.ml on 04 Jan 14:44 collapse

It does have clojure lsp support, but you’ll probably have to use a command line for most repls.

SloppilyFloss@lemmy.ml on 04 Jan 15:01 collapse

Yeah the clojure lsp support is top notch, but there being no support for “jacking in” to a repl is the big thing keeping me from using helix full time. There’s a way of doing it if you use kitty, but it’s pretty janky.

HotChickenFeet@sopuli.xyz on 19 Jan 02:02 collapse

Do you have experience with either ranger, lf, or yazi? I’m wondering how broot compares. Big fan of file ranger, and this looks very similar.

Static_Rocket@lemmy.world on 03 Jan 15:33 next collapse

People always sleep on script. It’s badass and let’s you do goofy things like this while keeping standard terminal formatting: github.com/StaticRocket/dotfiles/…/dot_bashrc#L79…

Zykino@programming.dev on 04 Jan 10:31 collapse

From your example, I have a hard time inferring what is it doing.

Static_Rocket@lemmy.world on 04 Jan 14:54 collapse

Executing a command, capturing all terminal formatting and escape codes so I can do some light manipulation on leading whitespace before dumping it back to the terminal.

bamboo@lemmy.blahaj.zone on 03 Jan 15:43 next collapse

dd is probably well known, but one of the simplest and most powerful ways to accidentally delete all data on your hard drive. dd if=/dev/random of=/dev/sda

soundconjurer@4bear.com on 03 Jan 16:02 next collapse

@bamboo @mfat , DD, great tool. Utilize it so often, but it is powerful and dangerous. I always double, triple, quadruple check my target disks with multiple programs to avoid destroying my production workstation. Might be best if I just designated a RPi for the job. 😅

I_Miss_Daniel@lemmy.world on 03 Jan 17:19 next collapse

ddrescue (or gddrescue) is a great version if you have a sick drive. It’ll try to copy the good areas first then go back to hammer on the sick areas.

Not perfect as it doesn’t know about the file system so it tries to copy the entire surface, but generally a good tool.

ivn@jlai.lu on 04 Jan 01:41 collapse

You can destroy it all the same with cp or cat.

thingsiplay@beehaw.org on 03 Jan 15:45 next collapse

ia: internetarchive archive.org/developers/internetarchive/cli.html cli tool, i only use it for downloads, it can a bit more than the eye meets first, like accepting a wildcard to download certain files or specify other stuff. I have an incomplete script to help me with that, which I want to share in the future. The only problem is, that the internetarchive at archive.org is often very slow at downloading.

mfat@lemmy.ml on 03 Jan 22:15 collapse

Wow. This might come in handy!

Lemmchen@feddit.org on 03 Jan 15:48 next collapse

pipeviewer or pv

villainy@lemmy.world on 03 Jan 16:08 next collapse

Great call! pv is deceptively powerful. Being able to see progress and rate limit a pipe is incredibly useful.

friend_of_satan@lemmy.world on 04 Jan 16:53 collapse

I’ve switched from using dd to using pv to write disk images to removable media.

z3rOR0ne@lemmy.ml on 03 Jan 15:51 next collapse

mlocate

KnightontheSun@lemmy.world on 03 Jan 17:01 next collapse

Do you have to wear the fedora to run this command?

z3rOR0ne@lemmy.ml on 03 Jan 18:05 collapse

No sorry, I should have elaborated. The package name is mlocate but the command is locate. Occasionally run updatedb as it populates an sqlite db with every file on your system that you can then list out using locate followed by the filename you want to locate.

EDIT: Lol. Sorry barely read your reply. Yes, you should wear a fedora while installing mlocate.

WalnutLum@lemmy.ml on 04 Jan 12:22 next collapse

I love locate! I have a cronjob that updates the db every night, then I can just find a file without having to think about where it is

oldfart@lemm.ee on 06 Jan 07:54 collapse

I immediately had flashbacks of diagnosing bad I/O performance on CentOS 5 servers. That was the week when I learned what updatedb is and why it was always running in the background (there was a lot of files)

iii@mander.xyz on 03 Jan 15:59 next collapse

watch -g

Zykino@programming.dev on 04 Jan 10:40 collapse

-g is not documented, what does it do?

Note: this made me discover topless (SFW) and its Caveat section.

iii@mander.xyz on 04 Jan 16:52 collapse

-g, --chgexit Exit when the output of command changes

kitnaht@lemmy.world on 03 Jan 16:00 next collapse

I like github.com/aristocratos/btop personally. It’s way prettier than the normal top command which you use to watch processes to find the one that’s hogging all of the CPU or whatever. And it’s not so much that it’s underrated so much as it’s not very well known or distributed by default.

BCsven@lemmy.ca on 03 Jan 16:05 next collapse

CTRL-L to clear your terminal output. Or type clear

danielquinn@lemmy.ca on 03 Jan 19:29 collapse

Also Ctrl+D to exit any shell and Ctrl+R for reverse searching your history!

fossilesque@mander.xyz on 03 Jan 16:08 next collapse

Inshellisense is teaching me a lot. :) It’s an autocompleter.

github.com/microsoft/inshellisense

Also, Atuin for history.

github.com/atuinsh/atuin

helmet91@lemmy.world on 03 Jan 16:11 next collapse

Use less for checking contents of files. Many people use cat all the time, but I don’t like it, because if you do that often, your terminal window quickly gets flooded with stuff, and then you have to scroll up and down if you wanna see a previous output. With less, your file opens in a different “frame”, which you can close when you’re done.

jayandp@sh.itjust.works on 03 Jan 16:50 next collapse

Yes! I use less all the time, combine it with grep, etc.

capuccino@lemmy.world on 03 Jan 16:52 next collapse

cat <your file> | more

KnightontheSun@lemmy.world on 03 Jan 17:00 collapse

Useless use of cat award!

razorozx@lemm.ee on 03 Jan 17:16 collapse

I’d like to interject for a moment. There is also a tool called bat that is just cat with extra features. It prints out and works just like cat, but when the contents get too big, it works like less. The is syntax highlighting and works with git.

It’s replaced my need for cat and less.

ComradeMiao@lemmy.dbzer0.com on 03 Jan 16:12 next collapse

Idk a lot of commands but I think wget for downloading webpages and rsync for syncing devices are pretty awesome

whelk@lemm.ee on 03 Jan 16:21 next collapse

The first time I used wget I felt so awesome. I was grabbing some extra music files I think it was for Ur-Quan Masters.

kablammy@sh.itjust.works on 06 Jan 02:21 collapse

I love httpie for hitting urls when i want to see the headers or body without downloading to a file eg testing an api

qyron@sopuli.xyz on 03 Jan 16:15 next collapse

I abused debfoster for years… it kept my machines running very, very clean.

mfat@lemmy.ml on 03 Jan 17:35 collapse

Cool. I’d never heard of this and I’ve used Debian for years.

jaxiiruff@lemmy.zip on 03 Jan 16:36 next collapse

nano was and still is vital to me learning and using linux, I will not learn how to use vim so if the distro forces it to be default im not using it.

Why is editing text so convoluted for seemingly no reason… also hate that vim must be used for certain files.

jayandp@sh.itjust.works on 03 Jan 16:49 next collapse

Yeah, to this day vim still isn’t intuitive for me, so I just use nano as it’s either often included or simple to install on most Distros.

Unless a script is hardcoded for vim I haven’t had to use it.

lordnikon@lemmy.world on 03 Jan 17:20 collapse

It’s weird but VIM is so powerful and I love it but i also agree it wouldn’t be the default just an option if you needed it. It’s like with notepad ++ on windows it’s wonderful but not everyone needs it from day one notepad will work just fine for basic typing.

TimeSquirrel@kbin.melroy.org on 03 Jan 16:51 next collapse

It's for people to memorize hundreds of arcane shortcuts and shit so they can feel like a smug hacker and gloat over the rest of us using other editors and getting just as much done as they are.

Also for graybeards that haven't realized it's not 1985 anymore.

KnightontheSun@lemmy.world on 03 Jan 17:04 next collapse

Wait until you meet an emacs user! ;p

Dran_Arcana@lemmy.world on 03 Jan 17:24 next collapse

For the average user you’re definitely right, but I will say for the sysadmin of headless systems, having a powerful cli editor is a godsend. While it may seem arcane and unnecessary, learning vim is easier than managing remote x or sshfs or copying files to and from a system.

I didn’t learn vim to be a contrarian; I learned it because it seemed (and still seems to be) the path of least resistance for many workflows.

KnightontheSun@lemmy.world on 03 Jan 22:07 collapse

I learned vi so I would not have to use ed or emacs!

Karmmah@lemmy.world on 03 Jan 18:31 next collapse

It’s for people that don’t want a big bulky IDE and are willing to put a little work in to get used to it. I do all my coding in the terminal with vim and tmux and I like the simplicity and that with two dotfiles I can migrate my whole development environment to whatever PC, server or RaspberryPi that I need.

captain_aggravated@sh.itjust.works on 03 Jan 19:13 next collapse

I’ve used Vim for some pretty non-nerdy stuff. Like ripping my DVD collection, when I got to the TV section I had a lot of file names to modify in bulk, and Vim let me do that. Also guitar tablature, the ability to edit plaintext both horizontally and vertically is surprisingly handy. Just having a macro to be able to add a bar line saves a shocking amount of time.

TimeSquirrel@kbin.melroy.org on 03 Jan 19:40 collapse

It was mostly a joke. I was just trying to mess with people 😉

captain_aggravated@sh.itjust.works on 03 Jan 20:46 collapse

Which I’ll use as a lighthearted excuse to mention things like the block edit mode.

[deleted] on 04 Jan 02:34 next collapse

.

zagaberoo@beehaw.org on 04 Jan 15:18 collapse

Wow, who hurt you? Vim is fun, and just because you can make things work without it doesn’t mean it has no practical benefit. It’s nice to have an editor as powerful as an IDE that doesn’t require a graphical environment.

Hundreds of shortcuts is emacs, by the way. A major perk of modal editing and the vi editing language is that you can compose relatively few operations to accomplish many tasks rather than memorizing lots of more complex and specific shortcuts.

Jumuta@sh.itjust.works on 03 Jan 16:51 next collapse

vim must be used for certain files??

jaxiiruff@lemmy.zip on 03 Jan 17:01 collapse

Cant remember exactly but it had something to do with a file relating to sudo and it only was allowed to be edited with a vim style editor.

JPAKx4@lemmy.blahaj.zone on 03 Jan 17:05 next collapse

There may be certain times where it’s all that’s available, I think I remember having to edit fstab in some recovery state in vi

hersh@literature.cafe on 03 Jan 17:13 next collapse

There’s a separate command called visudo for this purpose.

You CAN use any ol’ text editor but visudo has built-in validation specific to the sudoers file. This is helpful because sudoers syntax is unique and arcane, and errors are potentially quite harmful.

freeman@sh.itjust.works on 03 Jan 18:28 collapse

But visudo can use any editor if you set SUDO_EDITOR or EDITOR variables. If you don’t want to use vi(m) you should probably set EDITOR in your .bashrc and visudo and probably other programs will use your editor of choice.

Rozauhtuno@lemmy.blahaj.zone on 03 Jan 17:48 next collapse

visudo?

Jumuta@sh.itjust.works on 04 Jan 03:49 next collapse

/etc/sudoers?

you can just edit that with nano or whatever, the visudo thing they tell you to use is goofy and I don’t like it

johant@lemmy.ml on 07 Jan 06:50 collapse

The EDITOR or VISUAL environment variables are usually read by command line tools to launch your preferred editor. You could set VISUAL to nano before launching visudo and you would be editing the sudoers file in nano.

Karmmah@lemmy.world on 03 Jan 16:55 next collapse

I used nano when I started but now I am using vim for one year already. I’d recommend taking a few days where you only use vim and I think you will see why people like it. With a few motions you can be much faster than you would be in Nano.

jaxiiruff@lemmy.zip on 03 Jan 17:04 next collapse

One of the big reasons I switched to nixos is that I mostly need to use the console only for updating my system by editing the configuration file using nano. I do very little besides that thankfully while the GUI side of linux gets better everyday.

n0x0n@feddit.org on 03 Jan 18:35 collapse

I’m using Linux since 1998 and still like nano. I can use vi, but prefer nano when it’s available.

lordnikon@lemmy.world on 03 Jan 17:17 next collapse

You can change that by changing your editor global variable

olafurp@lemmy.world on 03 Jan 17:40 next collapse

You can change your hate to love by using vim

jaxiiruff@lemmy.zip on 03 Jan 18:04 collapse

one of my favorite linux youtubers is named vimjoyer so maybe one day I will try to learn it

bishbosh@lemm.ee on 03 Jan 23:28 next collapse

I’ve liked helix a bit more. It takes less initial set up, and generally has the mentality of showing what you’re about to change before inputting a change command.

olafurp@lemmy.world on 04 Jan 07:02 next collapse

I use vim mode everywhere I can and vim in the console, it took a bit of effort to learn but it was fun and satisfying. Highly recommend, I’m a vim user now for 7 years.

Kornblumenratte@feddit.org on 05 Jan 15:31 collapse

It’s totally worth it. But be aware that you might get some :w sprinkled over your documents you are forced to write in other editors or word processors which does not speak vim…

N0x0n@lemmy.ml on 03 Jan 19:04 next collapse

Wow you triggered a lot of vim users !

Maybe give micro a shot :) It’s nano but more sane defaults and comes with customization in mind.

boredsquirrel@slrpnk.net on 03 Jan 22:58 next collapse

Nano is hella confusing too. Since when is ^ = Ctrl?

And why dont they tell you that Ctrl+S Ctrl+C Ctrl+X works?

catloaf@lemm.ee on 03 Jan 23:01 next collapse

^C has been notation for ctrl-c for decades.

lazynooblet@lazysoci.al on 03 Jan 23:43 collapse

I grew up with the ^ symbol meaning CTRL. Kids these days.

BaumGeist@lemmy.ml on 04 Jan 07:09 collapse

Since 1968

As for why: arbitrary choice, they just needed a printable character they could show on screen, for when people pressed it and the terminal echoed it back out to them.

boredsquirrel@slrpnk.net on 04 Jan 13:04 collapse

Yes but I am not that old and never saw it anywhere. So while it makes as much sense as hjkl it is not beginner friendly.

Knuschberkeks@leminal.space on 03 Jan 23:14 next collapse

seems like you need to try micro. It’s like nano, but with more sensible standard keybinds imho, as well as syntax highlighting and global clipboard use.

jagged_circle@feddit.nl on 04 Jan 06:17 next collapse

igtfo<ESC>
:q!

BaumGeist@lemmy.ml on 04 Jan 07:01 next collapse

vim isn’t required for any files, you just followed online tutorials for how to edit those files instead of RTFM

terminal text editing is convoluted because it has to strike a balance between figuring out when a keypress is part of the text you’re typing, vs when it’s a command you’re using, and making sure that all the editor commands the designer wanted are accessible.

vim is great because it allows for thousands more editing commands and macros, and much more customization of the editor, up to allowing plugins that emulate other functionality. As it stands, my setup basically functions as a full, lightweight-ish, multi-language IDE that rivals Emacs or Visual Studio.

On top of all that, I don’t have to move my hands away from the homerow of keys to navigate or edit, which may not seem like much, but adds up to a lot of avoid typos and time saved from moving my hands to reach the arrows/delete/home/end/pgup/pgdn.

Some examples:

h, j,k,l move left, down, up, and right respectively, but they can be combined with a number to move that many rows or columns; e.g. 6j will move down 6 rows

dd deletes a line, but using a number + d + a movement will delete that many characters/lines in the path of the cursor: e.g. 34dl will delete 34 characters to the right of the cursor, 12dk will delete 12 lines up.

gg will take you to the first line, G will take you to the last, and number + either will take you to that line: e.g. 3275gg or 3275G will take you to line 3275

and finally you can use /text or regex pattern you want to search for and Enter to search the document for the first occurence below your current location, and then use n to search for the next occurence, or N to search for the previous

That doesn’t even scratch the surface (that’s just the cheatsheet, which only scratches the surface), but if you can get a handle on only what I’ve said, and switching between input and command mode (i and Esc respectively), the speedup to navigation alone will make it seem more sensible.

And as always, don’t forget to :wq (write to file and quit)

[deleted] on 05 Jan 16:05 collapse

.

Jumuta@sh.itjust.works on 03 Jan 16:53 next collapse

I think a lot of people don’t realise that yt-dlp works for many sites, not just YouTube

I used it recently for watching a video from tiktok without having to use their god awful web UI and it was amazing

GenderNeutralBro@lemmy.sdf.org on 03 Jan 17:48 next collapse

Also works on Twitch with the added benefit of NOT playing ads (you still get breaks, just with a placeholder screen instead of the commercial).

mpv has yt-dlp support built in, so it can just play the streams directly.

bennieandthez@lemmygrad.ml on 03 Jan 18:06 collapse

Wait how?

corvus@lemmy.ml on 03 Jan 18:55 next collapse

mpv --ytdl URL. Read starting from --ytdl option in the mpv man page, you can even give specific yt-dlp options through --ytdl-raw-options.

comfy@lemmy.ml on 04 Jan 02:36 collapse

I just run mpv $URL

krolden@lemmy.ml on 04 Jan 03:02 collapse

This is the only way to watch twitch

lord_ryvan@ttrpg.network on 04 Jan 12:46 collapse

With their huge, clunky UI and my 1080p screen, yeah it is.

gnuhaut@lemmy.ml on 03 Jan 20:27 next collapse

Since everyone keeps mentioning yt-dlp I gotta ask: what’s wrong with the original youtube-dl? I keep using it, it works, it’s still being updated.

CaptainBasculin@lemmy.ml on 03 Jan 22:31 next collapse

yt-dlp has sponsorblock features, youtube-dl does not.

lukewarm_ozone@lemmy.today on 04 Jan 22:23 collapse

There are minor feature differences there’s also a convenience factor: youtube-dl people for some reason stopped doing releases, so you can’t get a fresh version from pypi (only installing from github or their site). Yt-dlp is on pypi, including nightly builds.

friend_of_satan@lemmy.world on 04 Jan 16:50 next collapse

The huge list of sites can be found here github.com/yt-dlp/yt-dlp/tree/master/…/extractor

Landless2029@lemmy.world on 07 Jan 20:30 collapse

It also supports ripping playlists. Fantastic to archive a set locally…

stembolts@programming.dev on 03 Jan 16:57 next collapse

awk

…for parsing the output of other commands quickly and simply. Then that parsed output can be used to create simple log messages or be passed as args to other scripts. Powerful.

mfat@lemmy.ml on 03 Jan 17:38 collapse

awk and sed have always been intimidating for me with that cryptic syntax.

stembolts@programming.dev on 03 Jan 18:47 collapse

I agree with your sentiment regarding confusing syntax, however I think that confusion simply requires a calculated approach to dispell it.

It’s a prime example of why I use scripts as reminders as much as I use them functionally. I work out the syntax once… save it to an example script, then save myself 20 minutes of remembering by just $ cat ./path/to/script.sh and copying said syntax.

So if you can change your workflow such that learned things stay around as examples, I feel that you will pick it up much more quickly :)

turbowafflz@lemmy.world on 03 Jan 16:58 next collapse

I’m not sure how underrated it is but the exec feature in find is so useful, there are so many bulk tasks that would just be incredibly difficult otherwise but instead are just one line

danielquinn@lemmy.ca on 03 Jan 19:25 collapse

Just be careful with files with spaces in the name. There’s an incantation with xargs that I always have to look up when I want to use it safely.

zorro@lemmy.world on 03 Jan 16:59 next collapse

find?

riskable@programming.dev on 03 Jan 16:58 next collapse

glances! Way better than top and does a bazillion cool things!

nicolargo.github.io/glances/

tensor_nightly69@lemmy.world on 03 Jan 17:09 next collapse

I loved glances until I switched to btop with Hot Purple Traffic Light theme, and I doubt I’ll switch again. Check it out!

mfat@lemmy.ml on 03 Jan 21:30 collapse

This looks very cool. Thanks for sharing.

bokherif@lemmy.world on 03 Jan 17:12 next collapse

grep goes crazy if you know your regex

iii@mander.xyz on 03 Jan 18:20 next collapse

Relevant xkcd

Buckshot@programming.dev on 03 Jan 19:17 collapse

I was expecting this one.

tetris11@lemmy.ml on 04 Jan 13:40 collapse

I thought you meant this one

silasmariner@programming.dev on 03 Jan 20:44 next collapse

I can never get grep to work consistently on Mac and Linux. Now, ripgrep OTOH…

davel@lemmy.ml on 04 Jan 00:31 collapse

That’s because Macs generally use BSD-based command line tools instead of GNU ones. You have to do a lot of Homebrew jiggery-pokery to approximate a GNU environment. Know Your Tools: Linux (GNU) vs. Mac (BSD) Command Line Utilities

silasmariner@programming.dev on 05 Jan 00:08 collapse

Alas, doesn’t fit my purpose since it requires action by the script user. I usually just use perl in those situations

learnbyexample@programming.dev on 04 Jan 05:07 next collapse

Check out my chapter on GNU grep BRE/ERE for those wanting to learn this regex flavor: …github.io/…/breere-regular-expressions.html (there’s also another chapter for PCRE)

HotChickenFeet@sopuli.xyz on 19 Jan 02:10 collapse

I love flexibility with regex, personally I use ugrep as it also allows utilization of boolean and/or/not logic for more complicated searches.

a_good_hunter@lemmy.world on 03 Jan 17:30 next collapse

Bat, a cat alternative.

Lsd, an ls alternative.

Procs, a ps alternative.

Renane, because it’s great.

bennieandthez@lemmygrad.ml on 03 Jan 18:07 next collapse

what is the difference between eza and lsd? I switched to eza a while back and i havent looked at any other ls replacement.

alsimoneau@lemmy.ca on 04 Jan 06:40 collapse

Love LSD. I always install it first with btop and zoxide

a_good_hunter@lemmy.world on 04 Jan 10:05 collapse

Zoxide? Will check it out. Thanks.

GenderNeutralBro@lemmy.sdf.org on 03 Jan 17:30 next collapse

vd (VisiData) is a wonderful TUI spreadsheet program. It can read lots of formats, like csv, sqlite, and even nested formats like json. It supports Python expressions and replayable commands.

I find it most useful for large CSV files from various sources. Logs and reports from a lot of the tools I use can easily be tens of thousands of rows, and it can take many minutes just to open them in GUI apps like Excel or LibreOffice.

I frequently need to re-export fresh data, so I find myself needing to re-process and re-arrange it every time, which visidata makes easy (well, easier) with its replayable command files. So e.g. I can write a script to open a raw csv, add a formula column, resize all columns to fit their content, set the column types as appropriate, and sort it the way I need it. So I can do direct from exporting the data to reading it with no preprocessing in between.

dinckelman@lemmy.world on 03 Jan 17:47 next collapse

I really enjoy erdtree a ls replacement

kyub@discuss.tchncs.de on 03 Jan 18:08 next collapse

  • awk
  • the (usually rust-based) coreutils “alternatives” like bat, fd, eza, procs
  • trash-put (rm with trash integration. But beware that it also operates on directories by default, which rm only does with -r. There should be an option to change that behavior but there isn’t. Don’t alias rm to this)
  • wl-copy/paste (or the older one for X11, ‘xclip’ IIRC. Enables you to do stuff like “cat image.jpg | wl-copy” to copy it to the clipboard. Best alias it to something shorter)
  • xdg-open (open the file using your associated program for that file type. Alias to “o” or so)
  • pass (awesome password manager, when you have a GPG key pair. Even better in combination with e.g. wofi)
  • notify-send (to send GUI notifications from shell scripts)
  • ledger (plain-text accounting software. If you use Emacs you should take a look at this as it’s written by an Emacs dev, and has good integration of course)
  • nc
  • nohup
hperrin@lemmy.ca on 03 Jan 18:27 next collapse

degit is a tool that will check out a git repo (or a specific branch or commit), but not set it up as a git repo. Basically just downloading a specific commit to a directory.

x00z@lemmy.world on 03 Jan 19:13 collapse

So just clone a git and delete the .git folder? Seems pretty useless to me.

hperrin@lemmy.ca on 03 Jan 20:32 collapse

If you want to waste bandwidth downloading the entire commit history, go ahead.

ABasilPlant@lemmy.world on 03 Jan 20:52 collapse

–depth=1? I use this all the time when I clone the kernel.

Edit: reread that you wanted to download code at a particular commit.

Zykino@programming.dev on 03 Jan 22:16 collapse

–single-branch

ABasilPlant@lemmy.world on 04 Jan 06:09 collapse

Can single-branch handle cloning from a particular commit? I know that it’s possible to clone particular branches and particular tags with depth=1, but OP states cloning at a particular commit, not HEAD.

hperrin@lemmy.ca on 03 Jan 18:29 next collapse

I know tmux is incredibly popular, but a good use case for it that isn’t common is teaching people how to do things in the terminal. You can both be attached to the same tmux session, and both type into the same shell.

krolden@lemmy.ml on 04 Jan 03:03 next collapse

tmux is my religion

Pika@sh.itjust.works on 04 Jan 03:36 collapse

Tmux is so much better than screen, and yes that is the hill I will die on

Specially when confined with tmuxp , it’s how I handle Game servers that can run headless to start at boot without losing access to giving commands to the server via its server console

hperrin@lemmy.ca on 03 Jan 18:31 next collapse

I use node as a calculator a lot. It can be dangerous, because it suffers from floating point errors, but it’s generally more powerful than a calculator if you know the Math lib well.

Azzk1kr@feddit.nl on 04 Jan 10:19 collapse

Why not just use python as a calculator then?

hperrin@lemmy.ca on 04 Jan 19:03 collapse

Because I don’t know Python.

Azzk1kr@feddit.nl on 11 Jan 17:14 collapse

Fair enough, but Python is not that hard, especially for simple calculations. Start up the repl and type away!

from math import *
x = sin(12) + pi * 3.2
y = tan(x)
y
# prints 0.09200389785419612
bbbhltz@beehaw.org on 03 Jan 18:40 next collapse

Pandoc, FFMpeg, ImageMagick

N0x0n@lemmy.ml on 03 Jan 19:00 next collapse

FFMpeg Simple and underrated? Not sure about that.

danielquinn@lemmy.ca on 03 Jan 19:19 next collapse

Not in and of itself, but I find that I have a handful of common tricks that I can put into aliases. Also, there’s ffmpeg.app!

bbbhltz@beehaw.org on 03 Jan 19:27 next collapse

I only use it for simple things

menas@lemmy.wtf on 05 Jan 14:17 collapse

I was surprise to learn that we couldn’t remove remove metadata from video zith exiftool but have to use ffmpeg

N0x0n@lemmy.ml on 07 Jan 20:12 collapse

Yeah ffmpeg is powerful but far from easy to master and get It right when working with encoding.

thejevans@lemmy.ml on 03 Jan 19:22 collapse

similar to ImageMagick, jpegtran is great for lossless jpeg transformations. You can even extend jpegs using the “crop” function, which can be very useful for batch-processing images, even though it’s hardcoded to middle grey.

web.archive.org/web/…/jpeg-lossless-extend.html

pastel_de_airfryer@lemmy.eco.br on 03 Jan 18:41 next collapse

I use fuck to fix typos

Revan343@lemmy.ca on 03 Jan 19:21 next collapse

That’s fantastic, I can’t wait to go home and install it

christov@lemmy.world on 04 Jan 00:17 next collapse

Game changer!

lig@lemmings.world on 04 Jan 00:23 next collapse

If you’d map it to just f it’s even more handy

pastel_de_airfryer@lemmy.eco.br on 04 Jan 18:29 collapse

You gain efficiency, but lose fun

jagged_circle@feddit.nl on 04 Jan 06:13 next collapse

I use fuckit to fix exceptions

jagged_circle@feddit.nl on 04 Jan 06:14 next collapse

That sounds dangerous. I hope it never tries to fix anything with rm

alsimoneau@lemmy.ca on 04 Jan 06:34 collapse

You have to confirm any command before it runs, so no more dangerous than baseline rm

gandalf_der_12te@discuss.tchncs.de on 05 Jan 16:00 collapse

this just reminds me of please which runs the previous command with sudo

winterayars@sh.itjust.works on 06 Jan 13:54 collapse

sudo !!

Will also run the previous command with sudo, fwiw.

whelk@lemm.ee on 03 Jan 18:45 next collapse

I love ncdu for seeing where all my storage is being taken up.

beeng@discuss.tchncs.de on 03 Jan 18:50 next collapse

Using rust rewrite of coreutils you can cp -g to see progress. Set an alias :)

WalnutLum@lemmy.ml on 04 Jan 12:19 collapse

Holy shit I was just talking about cp with progress today. Awesome

jbrains@sh.itjust.works on 03 Jan 19:02 next collapse

Underrated or not widely known?

I love lazygit and I’m still surprised at how many people are shocked when they see it for the first time. Not exactly a command, but a very handy text UI tool.

For more elementary tools, I can’t believe how many people know about ! and ctrl+r who don’t also know about fc and edit-and-execute-command.

mfat@lemmy.ml on 03 Jan 21:41 collapse

Lazygit perfectly fits my lifestyle:) thanks for sharing

wasabi@lemmy.eco.br on 03 Jan 19:05 next collapse

I find myself using tldr a lot since finding out about it. It’s just so useful for commands that I don’t use enough to commit to memory.

jagged_circle@feddit.nl on 04 Jan 06:15 collapse

What is it?

wasabi@lemmy.eco.br on 04 Jan 06:49 collapse

You type tldr and then some command. For example, tldr tar. It gives you a small list of examples and common use cases for the command.

pool_spray_098@lemmy.world on 04 Jan 11:38 collapse

That sounds excellent, can’t wait to try it.

Sometimes manpages are frustrating as hell because there are no examples. They read more like the developer making notes for themselves who is already intricately familiar with the program on how it works, rather than teaching someone to use the program.

So many times I’m shaking me head, like please show me an example of a syntactically correct command, what is wrong with you!!

SteelyWing@lemmy.world on 03 Jan 19:43 next collapse

miniserve

A static file server, I use it for temporary file share in company, just run miniserve . in the folder.

dua

Alternative of du command, run dua i for a text UI

JustTesting@lemmy.hogru.ch on 03 Jan 22:17 collapse

Also useful in this regard, python comes with a sìmple file server built in, python -m http.server --directory /dir/ would serve /dir/ on port 8000.

Kekin@lemy.lol on 03 Jan 19:44 next collapse

I like btop Maybe not really “unknown”, but hey for those that don’t know about it, check it out!

ravermeister@lemmy.rimkus.it on 03 Jan 20:10 next collapse

I think socat is a really powerful und underrated tool

davel@lemmy.ml on 03 Jan 20:45 collapse

I’ve used it in high-throughput production environments to do things that netcats can’t.

davel@lemmy.ml on 03 Jan 20:41 next collapse

The pipe (|), which if you think about it is the basis for function composition.

UpperBroccoli@lemmy.blahaj.zone on 03 Jan 20:41 next collapse

yq is crazy cool for converting between different text-based data formats such as yaml, json, xml, csv and others, and it has a super nice pretty-printing function as well. I use it all the time!

Just be aware that your distroy might come with a yq variant too, but possibly one that isn’t as powerful as the one I linked. I know this to be true at least for Ubuntu.

learnbyexample@programming.dev on 04 Jan 05:05 next collapse
jagged_circle@feddit.nl on 04 Jan 06:12 next collapse

Can it handle a file that has corrupt json? Or does it just tell you “no”

Nibodhika@lemmy.world on 04 Jan 10:11 collapse

I used jq for something similar before, recently I’ve discovered Nu Shell and have been using that for converting and analyzing data since a full shell is a lot more powerful than a command (e.g. open a yaml, for each element on key X grab the first element of list Y and export to a CSV)

Sickday@kbin.earth on 03 Jan 21:06 next collapse

awk

BaumGeist@lemmy.ml on 04 Jan 06:15 collapse

simple

JackbyDev@programming.dev on 04 Jan 07:13 collapse

Came here to say both of these things. (Awk and “> simple”.)

To be totally honest, I don’t think awk is any more complicated than something like grep, it’s just that regular expressions get used more often so they’re typically more familiar. In the same way that programming languages with c-like syntax (like Java and C#) often feel easier than ones that don’t (like Haskell and Clojure).

xylogx@lemmy.world on 04 Jan 19:00 collapse

Awk is a turing complete programming language.

SocialMediaRefugee@lemmy.ml on 04 Jan 00:06 next collapse

As someone who has to do installs and admin at work a lot I’m constantly dealing with yum/dnf. I cry when I have to work with AIX.

tetris11@lemmy.ml on 04 Jan 07:30 next collapse

What is AIX

ojio_san@lemmy.world on 04 Jan 11:18 next collapse

Maybe it’s the old IBM AIX en.m.wikipedia.org/wiki/IBM_AIX

SocialMediaRefugee@lemmy.ml on 05 Jan 17:46 collapse

An OS used by IBM on their mainframes. I have to work with it because some big orgs, especially financial and gov, still use it and run our apps on it.

apqnxhfriqhfjxrrcxs@lemmy.world on 04 Jan 09:33 next collapse

We install dnf on our AIX boxes. Works okayish.

SocialMediaRefugee@lemmy.ml on 05 Jan 17:45 collapse

I tried grabbing it and couldn’t even get it to install. If you have a link to a good install…

apqnxhfriqhfjxrrcxs@lemmy.world on 05 Jan 18:47 collapse

I can’t find the docs I followed, but this seems to be more or less the same process: www.ibm.com/support/pages/node/6585774

There are version-specific AIX Toolbox installation scripts, so make sure you’ve got the right version (oslevel should help).

SocialMediaRefugee@lemmy.ml on 05 Jan 19:07 collapse

I think the version issues blocked me. I’ve put the toolbox on some of our test systems but dnf seems to be excluded from it. I’d probably have to build it.

friend_of_satan@lemmy.world on 04 Jan 16:52 collapse

Don’t run killall on aix before reading the man page!

SocialMediaRefugee@lemmy.ml on 05 Jan 17:47 collapse

It sounds scary lol

ClusterBomb@lemmy.blahaj.zone on 04 Jan 00:06 next collapse

Discovered about rg recently and it is cool!

mfat@lemmy.ml on 04 Jan 00:36 collapse
lig@lemmings.world on 04 Jan 00:22 next collapse

A really simple one but surprisingly useful is cal

EF5C_EF5C@lemmy.world on 04 Jan 01:19 next collapse

Cool cal trick, it knows about the Gregorian calendar reform: cal 9 1752

siipale@sopuli.xyz on 04 Jan 02:38 collapse

Very useful for having a quick glance at calendar. Although it’s annoying that there’s no option to have week start on monday.

OpFARv30@lemmy.ml on 04 Jan 05:50 collapse

alias cal=“cal -m”

siipale@sopuli.xyz on 04 Jan 19:26 collapse

Oh. I just assumed it didn’t have that option on linux either because macOS cal doesn’t have it.

Cyber@feddit.uk on 05 Jan 16:20 collapse

Maybe it’s a regional thing… cal defaults to starting on a Monday for me

lig@lemmings.world on 04 Jan 00:26 next collapse

On the subject of editors, joe is just awesome: lightweight, powerful, had coffee coloring and line numbers, and you can choose it with Ctrl+C:)

lig@lemmings.world on 04 Jan 00:30 next collapse

I don’t see anyone mentions htop. So, I will:) Just works, could be installed in any distro. Much more friendly than top but isn’t bloated with features as some other alternatives are.

dessalines@lemmy.ml on 04 Jan 03:16 next collapse

My fav for the past few years is github.com/ClementTsang/bottom

kitnaht@lemmy.world on 04 Jan 05:12 next collapse

Check out BTOP++ – it blows htop out of the water.

UnfairUtan@lemmy.world on 04 Jan 07:30 collapse

Bashtop if you want something more graphical

MonkderVierte@lemmy.ml on 04 Jan 01:46 next collapse

edir, can use GUI editors too.

MonkderVierte@lemmy.ml on 04 Jan 02:01 next collapse

Lightweight sudo alternatives, hard to google too. I know ssu and rdo, please mention others.

BaumGeist@lemmy.ml on 04 Jan 06:11 next collapse

OpenDoas, or simply doas, as in do [command] as [user]

MonkderVierte@lemmy.ml on 04 Jan 11:22 collapse

Thanks, couldn’t get it ever to work tho, and it doesn’t come with a default config in Arch.

communism@lemmy.ml on 04 Jan 16:59 collapse

Because it’s so simple, a good default config can be a one-liner. For similar functionality to default sudo:

permit persist setenv {PATH=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin} :wheel

Allows members of wheel to run commands as any user (if you just run doas <cmd> it will default to root), and “persists” for 5 minutes, ie if you run doas then for the next 5 minutes in the same session you won’t have to enter your password to run doas again, similar to default sudo settings.

wiki.archlinux.org/title/Doas

What problems were you having where you couldn’t get it to work?

MonkderVierte@lemmy.ml on 05 Jan 12:07 collapse

Always got permission denied, no matter what in the config. But thanks, i’ll try again.

Zykino@programming.dev on 04 Jan 10:55 collapse

Why should I use a sudo alternative?

MonkderVierte@lemmy.ml on 04 Jan 11:23 collapse

Because sudo is best suited for server administration, way overengineered (with the occasional critical vulnerability) for desktop use.
Alternatives can fit the required functionality for desktop use in 150 loc C code while sudo has what, something over 100’000 loc?

corsicanguppy@lemmy.ca on 04 Jan 02:12 next collapse

  • xargs
  • parallel
  • PXE (ohai cobbler)
  • tee
  • task-spooler (ts aka tsp)
  • rpm -V

Nothing new, just forgotten.

tetris11@lemmy.ml on 04 Jan 07:27 collapse

task-spooler (ts aka tsp)

This looks amazing. Do you know how well it works in dispatching and tracking jobs over remote servers (over SSH)?

Sylence@lemmy.dbzer0.com on 04 Jan 07:50 collapse

We’ve been using tsp at my work for years and it works well. It is just a very basic queueing system so if you can run the job from the command line then you can run it via tsp.

Our workflow is to have concurrent jobs run on the remote servers with cron and tsp but you should be able to trigger remote jobs over SSH also if you prefer to have a single machine in charge of task allocation.

harsh3466@lemmy.ml on 04 Jan 02:15 next collapse

zoxide. It’s a fabulous cd replacement. It builds a database as you navigate your filesystem. Once you’ve navigated to a directory, instead of having to type cd /super/long/directory/path, you can type zoxide path and it’ll take you right to /super/long/directory/path.

I have it aliased to zd. I love it and install it on every system

You can do things like using a partial directory name and it’ll jump you to the closest match in the database. So zoxide pa would take you to /super/long/directory/path.

And you can do partial paths. Say you’ve got two directories named data in your filesystem.

One at /super/long/directory/path1/data

And the other at /super/long/directory/path2/data

You can do zoxide path2 data and you’ll go to /super/long/directory/path2/data

GreenAppleTree@lemmy.world on 04 Jan 05:13 next collapse

You can do zoxide path2 data

I usually would just do z 2data. Yes, I’m lazy. It’s the perfect tool for lazy people.

harsh3466@lemmy.ml on 04 Jan 15:03 collapse

Nice! I guess I can be even lazier when navigating!

tetris11@lemmy.ml on 04 Jan 07:23 next collapse

Better than fasd?

UnfairUtan@lemmy.world on 04 Jan 07:29 collapse

Sounds a lot like autojump

harsh3466@lemmy.ml on 04 Jan 15:03 collapse

I’m not familiar with autojump

thews@lemmy.world on 04 Jan 02:42 next collapse

yes

Tuxman@sh.itjust.works on 04 Jan 04:42 next collapse

y

jagged_circle@feddit.nl on 04 Jan 06:10 collapse

y
y y
y
y
y

tetris11@lemmy.ml on 04 Jan 13:38 collapse

yes no maybe

qx128@lemmy.world on 04 Jan 02:48 next collapse

The mouse.

Bring on the downvotes. 🎉

bradd@lemmy.world on 04 Jan 07:05 next collapse

🖕😤🖕

tetris11@lemmy.ml on 04 Jan 07:31 collapse

Hey, still the quickest way to copy any damn text from a terminal elsewhere is with the mouse. Tmux is a joke for this.

Why can’t terminal emulators just make this easy

bedheadkitten@lemmy.world on 04 Jan 08:07 collapse

Wezterm has made this easy : shift + ctrl + x and your in vim motion moving all over with yank line or word or visual mode. It’s super awesome! I never touch my mouse. You can also remap the keymap of course.

tetris11@lemmy.ml on 04 Jan 08:09 collapse

Gotta try this

krolden@lemmy.ml on 04 Jan 02:59 next collapse

Find

eldereko@lemmy.dbzer0.com on 04 Jan 03:31 next collapse

+1 for Caddy, completely replaced nginx. also…

tetris11@lemmy.ml on 04 Jan 07:22 collapse

Gripes:

  • starship and all these shell frameworks are overbloated. Just write your own prompt command and be done with it.

  • restic, ongoing issue with the author to allow people to backup without a password. Seems like a no-brainer but he’s being difficult

Shimitar@feddit.it on 04 Jan 11:33 collapse

Why would you want password less backups?

I understand if the reason is ‘just because’, but seriously, why? I just write down the password in a text file for restic --password and I am done.

tetris11@lemmy.ml on 04 Jan 12:12 collapse

write down the password where though, somewhere I can guarantee it will always be there 10 years from now? That’s a big ask of me

jbrains@sh.itjust.works on 04 Jan 12:49 next collapse

I keep mine in Bitwarden, I export that data every 3 months and store it in a Backblaze backup, I have it written on a piece of paper stored in a locked fire box in my house, and that paper scanned in my phone.

I can’t imagine not having at least one of those in 10 years and I can’t imagine all four failing in the same week.

Does that give you any helpful ideas that would work for you?

tetris11@lemmy.ml on 04 Jan 13:23 collapse

None that I can see persisting, as I move around a lot and my backups tend to get boxed up for periods of time before being unboxed. But, I appreciate the effort

Cyber@feddit.uk on 04 Jan 16:22 collapse

I’ve gotta agree here that passwords - (and encryption) - should be optional.

Shimitar@feddit.it on 04 Jan 14:43 next collapse

That is true for lots of things.

Moreover I use one easy “default” password for all basic stuff, and its always the same known to my spouse and written down on paper.

At least my offsite backups are protected from prying eyes. Maybe uneeded for local backups, but doesn’t hurt to have.

Shimitar@feddit.it on 04 Jan 14:44 collapse

10 years? Boy you are joung :)

I have encrypted files from w 20 years ago, and unencrypted files from 30 years ago.

And digitized stuff from analogic of 40 and 50 years ago.

Lettuceeatlettuce@lemmy.ml on 04 Jan 04:06 next collapse

tmux - makes managing remote SSH sessions a breeze.

tomb - A little FOSS encryption utility that runs in the CLI. Easy, cute, effective. Tomb Utility

thebardingreen@lemmy.starlightkel.xyz on 04 Jan 05:05 next collapse

sshfs

learnbyexample@programming.dev on 04 Jan 05:10 next collapse

GNU datamash (www.gnu.org/software/datamash/alternatives/) - handy tool for data munching. There’s also github.com/BurntSushi/xsv

tetris11@lemmy.ml on 04 Jan 07:20 collapse

Wow, I might try learning this over the next few days. Nice replacement for tidyverse on the cli

Patchwork@lemmy.world on 04 Jan 05:44 next collapse

jq - super powerful json parser. Useful by hand and in scripts

qaz@lemmy.world on 04 Jan 07:58 next collapse

It can also format minimized JSON from cURL API requests

jbrains@sh.itjust.works on 04 Jan 12:44 next collapse

Combine with jc to process CSV files. This is how I get data into my plain text accounting system.

lengau@midwest.social on 04 Jan 15:39 next collapse

jq and yq are both things I install on pretty much every machine I have.

friend_of_satan@lemmy.world on 04 Jan 16:45 collapse

I love jq, but I wouldn’t call it “surprising simple” for anything but pretty-formatting json. It has a fairly steep learning curve for doing anything with all but the simplest operations on the simplest data structures.

toastal@lemmy.ml on 05 Jan 02:57 collapse

It’s not even pretty or accessible. 2-spaced indentation is incredibly hard to read.

jagged_circle@feddit.nl on 04 Jan 06:10 next collapse

ncdu

deathbird@mander.xyz on 04 Jan 06:19 next collapse

Underrated? I’d say lftp is the best FTP command line client there is. And Midnight Commander is a very very good file browser. I don’t see either praised enough.

tetris11@lemmy.ml on 04 Jan 07:15 next collapse

Lftp is fast. Those parallel chunked downloads are not a joke

marty_relaxes@discuss.tchncs.de on 04 Jan 07:43 next collapse

The terminal-based file browser space is so filled today but for my part I love what vifm has done for the dual-pane midnight commander concept - it’s the same basic idea, uses (somewhat) vim-like bindings by default and is super extensible.

friend_of_satan@lemmy.world on 04 Jan 16:48 collapse

Great call out! I first used ftp about 30 years ago, and lftp has been my go to for about the last decade. I rarely need it anymore, but I still use it for quickly transferring files with my homebrew switch.

oldfart@lemm.ee on 05 Jan 18:40 collapse

Did you know it can connect to HTTP directory listings and do the same things it does over S/FTP?

friend_of_satan@lemmy.world on 05 Jan 18:41 collapse

I did not! Interesting feature.

Presi300@lemmy.world on 04 Jan 07:38 next collapse

ddccontrol… it looks complicated on the surface but it’s really not and being able to control monitor brightness without fcking around in some garbage monitor OSD is a god sent and should be the standard

kittenroar@beehaw.org on 04 Jan 08:00 next collapse

tmsu is pretty cool - it creates a little db and uses that to track tags on your files without ever touching them. It also has it’s own little tag based filesystem.

digdilem@lemmy.ml on 04 Jan 08:20 next collapse

yes

The most positive command you’ll ever use.

Run it normally and it just spams ‘y’ from the keyboard. But when one of the commands above is piped to it, then it will respond with ‘y’. Not every command has a true -y to automate acceptance of prompts and that’s what this is for.

alvendam@lemmy.world on 04 Jan 10:51 next collapse

What’s the syntax here? Do I go

command && yes

I’m not sure if I’ve had a use case for it, but it’s interesting.

Raptorox@sh.itjust.works on 04 Jan 11:05 next collapse

That will just wait for command to finish properly and then run yes.

What you want to run is yes | command, so it spams the command with confirmations.

MonkderVierte@lemmy.ml on 04 Jan 11:38 next collapse

true delivers error level 0, false error level 1.

yes && echo True || echo False will always be True.

false && echo True || echo False will always be False.

Common usage is for tools that ask for permissions and similiar. yes | cp -i has the same effect as cp --force (-i: prompt before overwrites).

digdilem@lemmy.ml on 04 Jan 14:30 next collapse

Sorry, I should have explained that. it’s command | yes yes|command - Eg, yes|apt-get update (Not a great example since apt-get has -y, but sometimes that fails when prompting for new keys to accept)

Edit: I got it backwards, thanks @lengau@midwest.social for the correction.

lengau@midwest.social on 04 Jan 15:34 collapse

You’ve got it backwards - you need to pipe the output of yes into the input of the command:

yes | command-that-asks-a-lot-of-questions
digdilem@lemmy.ml on 04 Jan 20:55 collapse

So I did - thanks for the correction, edited.

valkyre09@lemmy.world on 04 Jan 14:40 next collapse

Also my favourite way to push a core to 100% CPU

yes > /dev/null
gandalf_der_12te@discuss.tchncs.de on 05 Jan 15:46 collapse

how is that better than

cat /dev/zero > /dev/null

or

while true; do :; done

valkyre09@lemmy.world on 05 Jan 17:44 collapse

Who said it was better? It’s just my favourite.

Like my favourite shirt, it’s no better than the others, but it brings me a little joy :)

  • on a serious note though, thank you for sharing your two examples - I didn’t know they existed.
markstos@lemmy.world on 04 Jan 20:22 collapse

For some cases I use “|| true”.

The idiom accepts that the preceding command might fail, and that’s OK.

For example, a script where mkdir creates a directory that might already exist.

kablammy@sh.itjust.works on 05 Jan 22:03 collapse

mkdir -p will not complain if the dir exists

markstos@lemmy.world on 06 Jan 17:07 collapse

Right, it was an example of a pattern. In that case, -p could be used.

kablammy@sh.itjust.works on 06 Jan 20:53 collapse

I figured as much. Just wanted to show another option.

MonkeMischief@lemmy.today on 04 Jan 16:35 next collapse

That’s really neat but also seems like it could be quite dangerous in a lot of use-cases!

digdilem@lemmy.ml on 04 Jan 20:53 collapse

Absolutely, but when you do need it, it’s brilliant.

friend_of_satan@lemmy.world on 04 Jan 16:41 collapse

Also, you can make yes return anything:

yes no
digdilem@lemmy.ml on 04 Jan 20:54 collapse

I… did not know that. Thanks, TIL!

WalnutLum@lemmy.ml on 04 Jan 12:23 next collapse

bc

It’s a simple command line calculator! I use it all the time.

communism@lemmy.ml on 04 Jan 16:47 collapse

Very useful for shell scripts that need to do maths as well. I use it to make percentages when stdout has values between 0.0 and 1.0

gens@programming.dev on 04 Jan 22:58 collapse

I once wrote a bc script that calculated parameters for the Blackman window for a FIR filter. (Had formulas already so not that impressive) Upped the precision until it needed like 30 sec to calculate, completely unnecessarely :).

ElCanut@jlai.lu on 04 Jan 12:29 next collapse

Underrated

Both linked projects have over 60k+ stars on GitHub

Pick one

kilgore_trout@feddit.it on 04 Jan 12:46 collapse

It has not taken over NGINX and Apache yet.

Fossifoo@hexbear.net on 04 Jan 12:39 next collapse

|

Honorary mention to < and &

Hossenfeffer@feddit.uk on 05 Jan 14:25 collapse

Came here for the pipe.

jollyroberts@jolly-piefed.jomandoa.net on 04 Jan 13:26 next collapse

Control+r == search through your bash history.

I used linux for ten years before finding out about that one.

nomen_dubium@startrek.website on 04 Jan 18:40 next collapse

i just cat grep .bash_history lol

but this does sound more convenient xD

eletes@sh.itjust.works on 04 Jan 18:48 collapse

Man not even using the history command

nomen_dubium@startrek.website on 04 Jan 19:08 collapse

well if it makes you feel better you just made me man history xD

Rolive@discuss.tchncs.de on 04 Jan 18:43 next collapse

So did I until reading this post. Thanks!

lukewarm_ozone@lemmy.today on 04 Jan 22:17 collapse

Works much better with fzf, but even just default bash it’s useful.

Matombo@feddit.org on 04 Jan 13:47 next collapse

kde connect

mavu@discuss.tchncs.de on 04 Jan 14:53 next collapse

all of them

sirico@feddit.uk on 04 Jan 17:02 next collapse

Man

Hadriscus@lemm.ee on 04 Jan 21:55 collapse

dude

HeartyOfGlass@lemm.ee on 05 Jan 13:31 collapse

Bruh

friend_of_satan@lemmy.world on 04 Jan 18:41 next collapse

Not powerful, but often useful, column -t aligns columns in all lines. EG

$ echo {a,bb,ccc}{5,10,9999,888} | xargs -n3
a5 a10 a9999
a888 bb5 bb10
bb9999 bb888 ccc5
ccc10 ccc9999 ccc888
$ echo {a,bb,ccc}{5,10,9999,888} | xargs -n3 | column -t
a5      a10      a9999
a888    bb5      bb10
bb9999  bb888    ccc5
ccc10   ccc9999  ccc888
menas@lemmy.wtf on 05 Jan 13:27 collapse

wait, shell could make matrix multiplication ?

Kornblumenratte@feddit.org on 05 Jan 15:05 collapse

No, that’s just brace expansion.

killabeezio@lemm.ee on 04 Jan 18:57 next collapse

paste. I don’t think a lot of people know this command, but it can be handy at times

AllHailTheSheep@sh.itjust.works on 04 Jan 18:58 next collapse

probably well known at this point but rsync is incredible and I use it all the time

VinesNFluff@pawb.social on 04 Jan 19:00 next collapse

batcat

It’s like cat but better. Great for when you just want to look at the contents of a file, without loading a whole text editor.

Oh also, tldr

My procedure for learning how to use a cli command goes tldr page -> --help if the tldr fails to help me -> THEN the full manpage

markstos@lemmy.world on 04 Jan 20:30 collapse

I like batcat aka bat, but nominate the humble ‘cat’ instead.

Want to copy a disk image to a device? You can use cat for that: cat file.iso>/dev/sdf

What to copy local stdout over ssh? Use cat.

ls -l | ssh myhost ‘cat >out.txt’

That’s simple and surprisingly powerful.

mlg@lemmy.world on 04 Jan 19:19 next collapse

inxi saves you time 90% of the time that you would use for lsXXX commands and grepping. Really useful for quick hardware and kernel module checks.

Glitterbomb@lemmy.world on 04 Jan 19:41 next collapse

motion

After spending years dealing with shady freeware and junk software on windows, I was floored by how easy and nonchalantly I was able to set up a simple security camera on my PC

spaghettiwestern@sh.itjust.works on 05 Jan 02:46 collapse

When you’re ready for a full monitoring package, check out Frigate.

AnnaFrankfurter@lemmy.ml on 04 Jan 20:03 next collapse

xargs

CAVOK@lemmy.world on 04 Jan 22:28 collapse

Very true. I used to do magic with xargs when working as a sysadm. Also a good way to mess up on a grand scale. Ask me how I know.

zergtoshi@lemmy.world on 04 Jan 22:30 collapse

So, how do you know?

CAVOK@lemmy.world on 05 Jan 21:22 collapse

By not testing it properly before running it over the whole file system resulting in a few hours of extra work cleaning up the mess I made.

sevenapples@lemmygrad.ml on 04 Jan 21:32 next collapse

dust: better version of du. There’s also diskonaut which is an interactive tool.

gerdesj@lemmy.ml on 04 Jan 23:02 next collapse

ip eg:

# ip a
# ip a a 192.168.1.99/24 dev enp160

The first incantation - ip address (you can abbreviate whilst it is unambiguous) gets you a quick report of interfaces, MAC, IPs and so on. The second command assigns another IP address to an interface. Handy for setting up devices which don’t do DHCP out of the box or already have an IP and need a good talking to.

Oh and you can completely set up your IP stack, interfaces and routing etc with it. Throw in nft or iptables (old school these days - sigh!) for filtering and other network packet mangling shenanigans.

toastal@lemmy.ml on 05 Jan 01:50 next collapse

netstat -tunl shows all open ports on the machine to help diagnose any firewall issues.

kyub@discuss.tchncs.de on 05 Jan 13:16 collapse

netstat is kind of deprecated, ss is more modern (from the iproute2 package) and uses very similar parameters.

ubergeek@lemmy.today on 05 Jan 15:49 next collapse

Pandoc.

oldfart@lemm.ee on 05 Jan 18:37 collapse

Converts any rich text format to any other.

gandalf_der_12te@discuss.tchncs.de on 05 Jan 15:53 next collapse

losetup

it’s useful for dealing with virtual disk images. like a real physical hard disk, but it’s a file on the computer. you can mount it, format it, and write it to a real physical disk.

it’s sometimes used with virtual machines, with iso images, or when preparing a bootable disk.

gandalf_der_12te@discuss.tchncs.de on 05 Jan 15:55 next collapse

nmap *your_local_ip_address*

for example

nmap 192.168.1.43/24 will show you what devices are connected to the local network, and what ports are open there. really useful, for example, when you forgot the address of your printer or raspi yet again.

you can also use it to understand what ports on your computer are open from an attacker’s perspective, or simply to figure out what services are running (ssh service).

gandalf_der_12te@discuss.tchncs.de on 05 Jan 15:57 next collapse

socat - connect anything to anything

for example

socat - tcp-connect:remote-server:12345

socat tcp-listen:12345 -

socat tcp-listen:12345 tcp-connect:remote-server:12345

HotChickenFeet@sopuli.xyz on 19 Jan 02:32 collapse

Most listed in some form elsewhere, but

  • Ugrep
  • ranger/lf
  • tmux (splitting terminal and detatching/reattaching when I’m sshing onto server, etc)

I’ve also been enjoying Kate. It’s a decent text editor, but the ability to Ctrl + / to pipe selected lines through any Linux command (Uniq, shuf, etc) is a bit of a superpower for an editor