Date: Sun, 11 Apr 2010 10:32:06 -0700 From: merlyn@stonehenge.com (Randal L. Schwartz) To: Jos Chrispijn <kernel@webrz.net> Cc: freebsd-questions@freebsd.org Subject: Re: Auto update Message-ID: <86aat9uc89.fsf@red.stonehenge.com> In-Reply-To: <4BC1972B.1080603@webrz.net> (Jos Chrispijn's message of "Sun, 11 Apr 2010 11:32:27 %2B0200") References: <4BC168D8.7080900@webrz.net> <F02E5989-F279-4059-9858-EF36FDA726FC@lafn.org> <4BC1972B.1080603@webrz.net>
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>>>>> "Jos" == Jos Chrispijn <kernel@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 <merlyn@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
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