Cab's Blog

I was converting some mp3s into a format that I could use on my iPhone using the info in this page:

http://theappleblog.com/2008/08/07/free-custom-iphone-ringtones-using-only-itunes/

Then I needed to rename the files to m4r’s.

Here’s the shell script I used, as the files had spaces in their names

#!/bin/sh
#  replace ‘ ‘ with ‘_’
for e in *; do mv “$e” “`echo $e | sed -e ’s/\ /_/g’`"; done

# rename the files
ls *.m4a | sed -e “s/^\(.*\)\.m4a$/\1\.m4a \1\.m4r/g” | xargs -n 2 mv -f

# replace the ‘_’ with ‘ ‘
for e in *; do mv “$e” “`echo $e | sed -e ’s/\_/ /g’`"; done