parses command line arguments

args.sh

#!/bin/bash

FILENAME=""
DIRNAME=""

while [ $# -gt 0 ]; 
do
    case $1 in
    (-h|--help) usage ;;
    (-v|--version) version ;;
    (-f|--filename)
		  FILENAME=$2;
		  shift 2;;
	  (-d|--dirname)
		  DIRNAME=$2;
		  shift 2;;
    (--) shift; break;;
    (-*) echo "$1: unknown option"; usage ;;
    (*) break;;
    esac
done


echo $FILENAME
echo $DIRNAME