change files' names

From: Selcuk Sahin <selcuk.sahin_at_aski.gov.tr>
Date: Tue, 28 Sep 2004 10:27:10 +0300

                Hello all.
            I wanna change the files' names in a directory. i.e abc.fmb to
abc_ytl.fmb or cde.fmx to cde_ytl.fmx. If I change the names one by one it
works but how can I change all the names at one time?
            SSS              
Received on Tue Sep 28 2004 - 07:29:49 NZST