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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.

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