Tab autocompletion for Bash scripts

Bash autocompletion

Naming file

README.md

Description

Tab autocompletion for Bash scripts.

Setup

1. Make script.sh globally visible (add it's directory to $PATH).
2. Add source /full/path/to/autocomplete.sh to ~/.bashrc.
3. Relogin.

autocomplete.sh

_autocomplete() {
    _commands='help list'
    _opts='all even odd'

    local cur prev
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

    if [[ $prev == 'script.sh' ]]; then
        COMPREPLY=( $(compgen -W "${_commands}" -- ${cur}) )
    elif [[ $prev == 'list' ]]; then
        COMPREPLY=( $(compgen -W "${_opts}" -- ${cur}) )
    fi

    return 0
}
complete -F _autocomplete script.sh

script.sh

#!/bin/bash

command=$1
option=$2

case $command-$option in
    help-)
        echo 'Here is your help'
    ;;
    help-*)
        echo 'Error'
    ;;
    list-all)
        echo '1, 2, 3, 4'
    ;;
    list-even)
        echo '2, 4'
    ;;
    list-odd)
        echo '1, 3'
    ;;
    list-*)
        echo 'Error'
    ;;
esac