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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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Any really good source to learn advanced bash? (sh.itjust.works)

submitted 2 days ago by pixeldaemon@sh.itjust.works to c/linux@lemmy.ml

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There is lots of books, videos and manuals about bash. So it is hard to tell if one is good or not. By advanced bash I mean regular expressions, complex scripts, and kind-of obscure options of basic commands no beginner tutorial tells about.

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[–] ranzispa@mander.xyz 2 points 2 days ago

To be fair, bash is pretty simple. You can find the syntax for regular expressions, string manipulation and stuff like that by searching the syntax on the internet. It is not too long.

You can read the manual, it explains all that. That should be enough, I would not say you need much more than that.

Now, if you're talking about using bash scripts professionally, I'd say you should focus on studying programming in general, not really focused on bash scripting. But at that point you'll realize that bash scripts are pretty much a useful quick utility, not something you'd really want to write complex logic with.

If you want to be proficient in using your system, rather than learning the whole syntax of bash I'd say knowing what the GNU tools are is very much more useful.

You want to get the number of unique values in a column of CSV? cut | uniq | wc at this point bash just becomes a way to put pieces together and you do not need very advanced features.