util-linux/bash-completion/chfn

_chfn_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-u'|'--help'|'-v'|'--version')
			return 0
			;;
	esac
	case $cur in
		-*)
			OPTS="-f --full-name -o --office -p --office-phone -h --home-phone -u --help -v --version"
			COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
			return 0
			;;
	esac
	COMPREPLY=( $(compgen -u -- $cur) )
	return 0
}
complete -F _chfn_module chfn