#! /bin/bash

echo $COMP_CWORD

if [ "$COMP_CWORD" = 1 ]; then
	compgen -c $2
else
	case ${2:0:1} in
	$) compgen -v $2;;
	~) compgen -u $2;;
	@) compgen -A hostname $2;;
	*) compgen -f $2;;
	esac
fi