If you're in Linux, use: # rename 'y/\ /_/' * ________________________________ From: saidimu apale <saidimu@gmail.com> To: Skunkworks forum <skunkworks@lists.my.co.ke> Sent: Sat, November 21, 2009 2:20:49 AM Subject: [Skunkworks] if you ever need to rename 100+ files... I needed to quickly and painlessly rename some files by replacing spaces with underscores (_). Here's a quick and dirty python script that did it for me. I ran it from the python interpreter command-line (I didn't save the script to a file... lazy). ----- begin script----- import os for file in os.listdir(os.getcwd()): newname = "_".join(file.split()) os.rename(file, newname) ----- end script------ It's a quick and dirty script so there's no error-handling of *any* sort. But that's trivial to add if you needed it.