Bash Shell

• The Art of Command Line (HN)
• Bash-Oneliner
• Shell Script Best Practices, Shrikant Sharat Kandula (HN)
• Apparently the Advanced Bash Scripting guide is considered full of bugs, as per the #bash community on Libera.chat.

Useful tips:

• You can split on input by specifying an internal field separator (IFS), then reading in content via the read command.

  IFS=';' read -ra ADDR <<< "$IN"
  for i in "${ADDR[@]}"; do
    # process "$i"
  done
• ShellCheck, (GitHub) can be used as a linter for shell scripts.
  • The ShellCheck Wiki provides all of the rules, explanations for why, and examples for the rules checked by ShellCheck