Finding either boot time or login time

[Jerry D. Hedden]

Mark J. Reed writes:
> One-liner to display the boot time:
> $ perl -lane 'print ~~localtime(time-$F[0])' /proc/uptime

Ronald Fischer wrote:
> Would you mind explaining the ~~ trick?

Clever tricks are interesting, but definitely are an obfuscation.
This makes things more plain:

perl -lane 'print(scalar(localtime(time() - int($F[0]))))' /proc/uptime

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