Nostr Web Client

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:

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