On Tue, 25 Mar 2003 11:31:08 -0800, Patrick Nelson wrote > Ben Russo wrote: > > Mike Vanecek wrote: > > > >> Been at it too long, looked in the Reg Expression book, but just can > >> not see it. Would some kind soul please tell what I am doing wrong > >> here: > >> > >> I want to look at messages and ignore lines that have asia1 or asia2 > >> in them: > >> > >> > >> grep -vie '(asia1|asia2)' /var/log/messages | less > >> > >> I have tried several different combinations, but obviously not the > >> correct one. > >> > > > > egrep -v "asia1|asia2" /var/log/messages | less > > Although the egrep solution Ben sent works great, just some > background because you said you tried do it with grep: > > In grep you can do it also, but you have to escape the control characters > like: > > grep -vie '\(asia1\|asia2\)' /var/log/messages | less > > you could also do it a couple of other ways with grep: > > grep -vie 'asia1\|asia2' /var/log/messages | less > grep -vi -e 'asia1' -e 'asia2' /var/log/messages | less > > As far as egrep you could have: > > egrep -vie '(asia1|asia2)' /var/log/messages | less > egrep -vie -e 'asia1' -e 'asia2' /var/log/messages | less
I appreciate the help from you both. Balancing patterns and extended regexp is a little confusing with regard to knowing when one must escape the control characters. The more I read about it the less I know ... It is just what was needed, thank you. -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
