On 11 April 2010 18:32, Randal L. Schwartz <mer...@stonehenge.com> wrote:
> >>>>> "Jos" == Jos Chrispijn <ker...@webrz.net> writes: > > Jos> In order to find out if someone logged in, I should then first copy > auth.log > Jos> to auth2.log, and do a compare and then do the tail trick. Have to > cron that > Jos> every half a minute. > > No, just track it with tail -f as was already suggested. > > tail -f /var/log/authlog | while read aline; do; ... ; done > > The code in the middle will get executed as each line appears in the > file. This even survives authlog renaming when you logroll. > > -- > Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 > <mer...@stonehenge.com> <URL:http://www.stonehenge.com/merlyn/> > Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. > See http://methodsandmessages.vox.com/ for Smalltalk and Seaside > discussion > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" > no use -F not -f as log rotation will break it otherwise _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"