echo
}
-if [ "$#" <= "2" ]; then
+if [ -z "$1" -o ! -d "$2" ]; then
usage
exit 0
fi
dir="$2"
-files=`find $dir -name '*.jpg'`
-files="$files
-`find $dir -name '*.JPG'`"
-
-./dfb-photoshow $1 $files
+files="`find $dir -name '*.jpg'`
+`find $dir -name '*.JPG'`
+`find $dir -name '*.jpe'`
+`find $dir -name '*.JPE'`
+`find $dir -name '*.jpeg'`
+`find $dir -name '*.JPEG'`
+`find $dir -name '*.gif'`
+`find $dir -name '*.GIF'`
+`find $dir -name '*.png'`
+`find $dir -name '*.PNG'`"
+
+[ ! -z "`echo $files | sed 's/\ //g'`" ] && ./dfb-photoshow $1 $files
echo
echo done