hi all, i have a file like; # one 123 and i would like to APPEND a # at the beginning of each line which is not started with a # . how can i do it with vi or ed, so far, i 've tried; :%s/^[a-z]:[0-9]/#/g but this would CHANGE the first character of each line to a hash, pls help. thks in advance. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail