Have Problems adding an extension to files in a directory

I'm Trying add an .edi extenion to the file that originally looks like this: i.gtp.030206065504
I would like it to look like this: i.gtp.030206065504.edi


When using this code Im getting the error: Cannot rename *gtp.* to *gtp.*edi:

This is my code:


OLDSUFFIX=
NEWSUFFIX=edi
for FILES in *gtp.*"$OLDSUFFIX"
do
NEWNAME=`echo "$FILES" | sed -e "s/${OLDSUFFIX}\$/$NEWSUFFIX/"`
mv "$FILES" "$NEWNAME"
done

Any Suggestions would be appreciated!!!!

Hi,

if you just have to add the ".edi" extension to all the files, you could do just this:

for $files in *.gtp.*
do
mv $files $files.edi
done

OR

for $files in *.gtp.*
do
NEWSUFFIX=".edi"
mv $files $files$NEWSUFFIX
done


Hope this helps,
Stef.

for ($i in *); do mv "$i" `basename "$i"`.edi; done

is my "standard rename function"