frag 1187636058 learn see !faq rename SavetheWorld 1188775365 forget SavetheWorld 1188775378 learn http://wooledge.org/mywiki/BashFAQ#faq30 -- How can I rename all my *.foo files to *.bar, or convert spaces to underscores, or convert upper-case file names to lower case? greycat 1212609288 forget greycat 1212609304 learn /msg greybot faq rename ferret 1272819629 forget ferret 1272819696 learn rename(1) could be one of three or four different programs -- or you might not have it on your system. A loop or find expression that uses mv is safer. See also !faq rename