On Ma, 27 dec 11, 20:57:55, lina wrote: > Hi, > > I have two questions, wish to get advice, > > Question 1: > > For a series of files: > > cat a_*.o* | grep "WARNING" Useless use of 'cat' (grep can open files) > some file like a_1.o12 has WARNING, but others does not have WARNING > > How can I let grep returns the filename? From your explanation it's not clear to me if you want -l or -H, but you might just read 'man grep' and decide for yourself ;) Not familiar with xargs, but you should probably read that manpage too. To answer the question in your subject I think the correct command to use is 'man' :) Kind regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic
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