It's very useful to use ShellCheck to check any shell code you write.
- The proper she-bang for Bash is
#!/usr/bin/env bash.
- Parameter expansion
- Defensive BASH Programming
- Safe ways to do things in Bash (HN comments)
- Pure Bash Bible - Collection of pure bash alternatives to external processes.
- Bash Infinity - Modern boilerplate / framework / standard library for Bash.
- Funky - Takes shell functions to the next level by making them easier to define, more flexible, and more interactive.
- create-bash-script - Bash script designed to create other bash scripts with argument parsing.
- Bash Language Server - Bash language server implementation based on Tree Sitter and its grammar for Bash with explainshell integration.