#!/bin/sh

progname=`basename $1`
syntax="syntax: $progname name"
die(){
        echo "$progname: $*" 1>&2
        exit 1
}
[ $# -eq 1 ] || die "$syntax"
s=`echo "$1" | sed 's,/[^/]*$,,'`
if [ "$s" = "$1" -o -z "$s" ] ; then
        echo .
else
        echo "$s"
fi
