for i in `ls . | grep *.ext | sed 's/\.ext//'`; do mv $i.ext $i.other; done

this should do it. 

-> -----Original Message-----
-> From: Don Harrop [mailto:don@nis4u.com]
-> Sent: Tuesday, August 22, 2000 3:38 PM
-> To: plug-discuss@lists.PLUG.phoenix.az.us
-> Subject: mass renaming
-> 
-> 
-> I'm trying to rename a ton of files with a certain extension 
-> to another
-> extension type.  If this is possible with the mv command I 
-> can't figure out
-> the syntax..  Anyone know how to do this?
-> 
-> Don
-> 
-> 
-> ________________________________________________
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