Mini Shell

_fstrim_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-o'|'--offset'|'-l'|'--length'|'-m'|'--minimum')
			COMPREPLY=( $(compgen -W "num" -- $cur) )
			return 0
			;;
		'-h'|'--help'|'-V'|'--version')
			return 0
			;;
	esac
	case $cur in
		-*)
			OPTS="--all
				--fstab
				--listed-in
				--quiet-unsupported
				--offset
				--length
				--minimum
				--verbose
				--dry-run
				--help
				--version"
			COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
			return 0
			;;
	esac
	local MPOINTS
	MPOINTS=$(findmnt -rno SOURCE,TARGET | awk '/^\/dev/{print $2}')
	COMPREPLY=( $(compgen -W "$MPOINTS" -- $cur) )
	return 0
}
complete -F _fstrim_module fstrim