util-linux/bash-completion/cfdisk

_cfdisk_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-L'|'--color')
			COMPREPLY=( $(compgen -W "auto never always" -- $cur) )
			return 0
			;;
		'-V'|'--version'|'h'|'--help')
			return 0
			;;
	esac
	case $cur in
		-*)
			OPTS="	--color
				--zero
				--lock
				--help
				--read-only
				--version"
			COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
			return 0
			;;
	esac
	compopt -o bashdefault -o default
	COMPREPLY=( $(compgen -W "$(lsblk -pnro name)" -- $cur) )
	return 0
}
complete -F _cfdisk_module cfdisk