filename manipulation

[jeff elkins <jeffelkins@earthlink.net>]

Howdy,

I need a shell script to strip X leading characters from a filename. I'm using 
basename to change extensions, any analog of this I could use?

#!/bin/sh
#
  for i in *.zzz; do
     if test -f $i; then
         NAME=$(basename $i .zzz)  
         echo $NAME
         mv ${NAME}.zzz ${NAME}.xxx
 fi
 done

Thanks,

Jeff Elkins