I was reading some docs and it mentioned that this only works if the comment is in both files. can you confirm? On Mon, Oct 22, 2012 at 2:36 PM, Brian Cluff wrote: > If you want to kill lines that start with // then you need to anchor it to > the beginning of the line with ^. If you want to also get comments that > start with spaces or tabs you can also add \s to match white space followed > by a * to match 0 or more occur aces of white space. > > So the line you would want to use would look like: > > diff -I '^\s*//' file1 file2 > > Also note that I put it in single quotes to keep the shell from escaping > some characters. > > Brian Cluff > > > On 10/22/2012 01:59 PM, Eric Cope wrote: > >> Hi all, >> I am trying to diff between two sets of files. I want to ignore comments >> (lines that start with //). >> I've tried >> >> * diff -I "//" file1 file2 >> * diff -I "\/\/" file1 file2 >> * diff -I "//.* file1 file2 >> >> >> among others. Has anyone successfully used diff and its ignore option? >> >> Thanks, >> Eric >> >> >> ------------------------------**--------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.**phoenix.az.us >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.PLUG.phoenix.az.**us/mailman/listinfo/plug-**discuss >> >> > ------------------------------**--------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.**phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.**us/mailman/listinfo/plug-**discuss >