#!/bin/sh

if [ -z "$1" ] ; then
	set *
fi

for f in "$@" ; do
	f=`echo "$f" | sed -e 's!/$!!'`
	f2=`echo "$f" | sed -e 's/ /_/g' -e 's/%20/_/g'`
	[ "$f" = "$f2" ] && continue
	mv -iv "$f" "$f2"
done