I have books on GNU grep/sed/awk [0] (currently free in spirit of quarantine learning) that teaches the command and features step by step using plenty of exampl

I have books on GNU grep/sed/awk [0] (currently free in spirit of quarantine learning) that teaches the command and features step by step using plenty of examples and exercises. There's a separate chapter for regular expressions too. And I have a list of curated resources for `bash` and Linux [1]. Here's what I'd recommend: * https://ryanstutorials.net/linuxtutorial/ https://ryanstutorials.net/linuxtutorial/ is a good place to start for beginners * https://mywiki.wooledge.org/BashGuide https://mywiki.wooledge.org/BashGuide and the rest of this wonderful wonderful site is recommended to understand `bash` and its features and gotchas * https://explainshell.com/ https://explainshell.com/ gives you a quick help on the various parts of the command, including documentation * https://www.shellcheck.net/ https://www.shellcheck.net/ is a must have tool if you are writing shell scripts * https://linuxjourney.com/ https://linuxjourney.com/ is probably the most complete site to understand how things work in *nix environment [0] https://learnbyexample.github.io/books/ https://learnbyexample.github.io/books/ [1] https://github.com/learnbyexample/scripting_course/blob/master/Linux_curated_resources.md https://github.com/learnbyexample/scripting_course/blob/mast...