convert all file names in the current directory to lower case

convert_fname_lowercase.sh

#!/bin/sh
# convert all file names in the current directory to lower case
# only operates on plain files--does not change the name of directories
# will ask for verification before overwriting an existing file

for x in `ls`
do
	if [ ! -f $x ]; then
		continue
	fi

	lc=`echo $x  | tr '[A-Z]' '[a-z]'`

	if [ $lc != $x ]; then
		mv -i $x $lc
	fi
done