#
# An almost-ksh compatible `whence' command.  The one difference between this
# and the real ksh `whence' is that this version, when the "-v" flag is not
# given and presented with something that is not in the path, simply echos it
# without more checking to see if it is a function, builtin, or alias.
#
# Chet Ramey
# chet@ins.CWRU.Edu
#


whence()
{
	local vflag
	local path

	vflag=
	path=
	if [ $# = "0" ] ; then
		echo "whence: argument expected"
		return 1
	fi
	case "$1" in
		-v) vflag=1
		    shift 1
		    ;;
		-*) echo "whence: bad option: $1"
		    return 1
		    ;;
		 *) ;;
	esac

	if [ $# = "0" ] ; then
		echo "whence: bad argument count"
		return 1
	fi

	for cmd
	do
		if [ "$vflag" ]	 ; then
			echo $(builtin type $cmd | sed 1q)
		else
			path=$(builtin type -path $cmd)
			if [ "$path" ] ; then
				echo $path
			else
				case "$cmd" in
					/*) echo ""
					    ;;
					*) echo "$cmd"
					   ;;
				esac
			fi
		fi
	done
	return 0
}