while [ $# -gt 0 ];do
	case "$1" in
		-h|--help)
			echo "$0"" - check PATH and find unusing dirctories"
			echo "Usage : $0 -d[directory]"
			echo "Also you can place keys in any order you want"
			exit
			;;
		-d|--directory)
			searchingDirectory="$2"
			shift 2
			;;
		*)
			break
			;;
	esac
done
tempdir=TempDirectory0
while [ -f $tempdir ]
do
	tempdir=TempDirectory$counter
	counter=$(($counter+1))
done
touch $tempdir
IFS=':'
for dir in $PATH; do
	for file in $dir/*;
	do
		if [ -x "$file" ]; then
			echo $file>>$tempdir
		fi
	done
done
if [ -z "$searchingDirectory" ]; then
	cat $tempdir | grep -v '\.\.\/|\.\/'
	rm -rf $tempdir
else
	for dir in $searchingDirectory; do
		cat $tempdir | grep -v '\.\.\/|\.\/' | grep $dir
	done
	rm -rf $tempdir
fi