#!/bin/sh

if [ $# -eq 0 -o "$1" = "-h" -o "$1" = "--help"  ]; then
  echo "Usage: renamelower <file1> <file2> ..."
  echo "Renames files to their lower-case equivalent.  renamelower never overwrites existing files." | fmt
  exit 1
fi

while [ $# -gt 0 ]; do
  oldname=${1##*/}
  path=${1%$oldname}
  newname=`echo "$oldname" | sed -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÜ/abcdefghijklmnopqrstuvwxyzäöü/'`
  #echo $1 $path $oldname $newname
  
  if [ "$newname" != "$oldname" ]; then
  	test ! -e "$path$newname" && mv "$path$oldname" "$path$newname"
  fi
  shift
done