Useful info and links for Bash, shell, regex and more

useful-links.md

Useful info and links

Disclaimer: The resources below may contain incomplete information, inaccuracies or errors. Use them wisely.

Bash

• https://cw.fel.cvut.cz/wiki/courses/b4b35osy/cviceni/material/bash (in Czech)
  CTU FEL B4B35OSY course's Bash introduction

• https://devhints.io/bash
  Bash scripting cheatsheet

• explainshell.com
  write down a command-line to see the help text that matches each argument

• ShellCheck: see GitHub or website

  • a static analysis tool for shell scripts
  • available on web, as CLI tool, or in your IDE (available in VSCode, bundled in IntelliJ based IDEs (as Shell Script plugin), see project's usage guide)
  • can detect worse patterns in code and offer exaltation and best practice, e.g.:
    • Use $(...) notation instead of legacy backticked ....
      https://github.com/koalaman/shellcheck/wiki/SC2006

• What is the difference between the Bash operators [[ vs [ vs ( vs ((? https://unix.stackexchange.com/q/306111
  also see https://stackoverflow.com/a/669486
  and http://mywiki.wooledge.org/BashFAQ/031

• What is the preferred Bash shebang? https://stackoverflow.com/q/10376206

• How can I search within a man?
  https://askubuntu.com/questions/20752/how-can-i-search-within-a-manpage

• asciinema
  Record and share your terminal sessions, the right way.

• Awesome Bash list

• Awesome Shell list

• Terminals Are Sexy list

Regular expressions

• regex101.com
  online regex editor with a comprehensive syntax highlighting, explanation and reference