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Subject: | RE: Finding either boot time or login time |
Date: | Mon, 2 Feb 2009 11:54:15 -0500 |
From: | "Cooper, Karl \(US SSA\)" <karl DOT cooper AT baesystems DOT com> |
To: | "Jerry D. Hedden" <jdhedden AT 1979 DOT usna DOT com>, <cygwin AT cygwin DOT com> |
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> Mark J. Reed writes: >> One-liner to display the boot time: >> $ perl -lane 'print ~~localtime(time-$F[0])' /proc/uptime >=20 > Ronald Fischer wrote: >> Would you mind explaining the ~~ trick? >=20 > Clever tricks are interesting, but definitely are an obfuscation. > This makes things more plain: >=20 > perl -lane 'print(scalar(localtime(time() - int($F[0]))))' > /proc/uptime=20 I don't know perl, but I did try both of these one-liners on my Cygwin 1.7 setup, and the output differs (by one second). I thought that was interesting. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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