Command Prompt: Shell Scripting and Configuration

Reference skill for writing commands, scripts, and configuration across Unix shells. Detects the target shell from context and routes to the appropriate reference.

Target versions (May 2026):

• Zsh: 5.10
• Bash: 5.3
• Fish: 4.6
• Nushell: 0.111
• Tcsh: 6.24
• Dash: 0.5.13

When to use

• Writing shell commands, scripts, or one-liners
• Configuring dotfiles (.zshrc, .bashrc, .profile, config.fish)
• Writing completions, shell functions, or aliases
• Porting scripts between shells