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this post was submitted on 03 Jan 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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probably well known at this point but rsync is incredible and I use it all the time
- xargs
- parallel
- PXE (ohai cobbler)
- tee
- task-spooler (ts aka tsp)
- rpm -V
Nothing new, just forgotten.
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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.
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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
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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.
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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.
- 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
I like https://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.
netstat -tunl shows all open ports on the machine to help diagnose any firewall issues.
netstat is kind of deprecated, ss is more modern (from the iproute2 package) and uses very similar parameters.
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.
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