I have bunch of files in win xp machine with

123456 E15 filename
112333.E20 filename
123412.E11 filename

you get the pic, I mount that xp machine's share into linux and try to do a mass rename to something simpler

E15 filename
E20 filename and so on..

I wrote below thinking that it would work but it does not.. can someone advise?

#!/bin/sh
ls |
egrep "^[0-9][0-9][0-9][0-9][0-9]" |
while read a
do
echo $a
yahoo=`sed 's/^[0-9][0-9][0-9][0-9][0-9][0-9][ .]//gi'`
mv $a $yahoo ; mv $yahoo $a
done