Stackoverflow

guess this might be good: [gnu fsf page](https://www.gnu.org/software/bash/manual/)

https://files.sovbit.host/media/public/2717df31523663317d3f1fe6f0420f25467ac26155ac07cc8aacbe0813db907f.webp#m=image%2Fwebp&dim=720x960&blurhash=_CB%3Ay%25%7E9%24J%3FE%24JsljE_N-n%24e%24yxZxYs.Z%23%3D_%3FGs%2Ct7Rla%7E8_oI%25Nj%5BS6WVRkR4M%7CNfRkbbNJNHs%2CxaogRjRkWWR*S6Rje-R.fRR-oexuxYn%24ogRkWCWV%251NHRkt6n%7Eofj%40&x=14c0cd105ff8891385f0229cb8b69aea22bed7ba4957a0a1045a05f353fe99f4

Used to recommend this once in a while:

https://www.freecodecamp.org/news/bash-scripting-tutorial-linux-shell-script-and-command-line-for-beginners/

I had one of these many years ago.

Bash Pocket Reference: Help for Power Users and Sys Admins

https://www.oreilly.com/library/view/bash-pocket-reference/9781449388669/

May be more helpful if you like super concise cheat sheets you can print and laminate yourself

https://learncodethehardway.org/unix/bash_cheat_sheet.pdf

I primarily just use the GNU Bash Manual https://www.gnu.org/software/bash/manual/

If you're interested in printed books I generally have liked the O'Reilly books, but don't think I'm familiar with their bash books.

A site I thought was interesting I came across could be of use: https://explainshell.com/

And maybe something like bash one-liners can be good for ideas: https://www.bashoneliners.com

I would recommend learning regular expression syntax to while you're at it, if not familar. Many uses. A few resources for that:

https://www.regular-expressions.info/

https://regex101.com/

https://cheatography.com/davechild/cheat-sheets/regular-expressions/

Additionally become familar with common *nix commands: cut, tr, awk, sed, grep, cat, etc

https://www.gnu.org/software/coreutils/

https://www.gnu.org/software/gawk/manual/gawk.html

https://www.gnu.org/software/sed/