Re: How can Emacs get a unique ID per Linux reboot?
Jamie Lokier (lkd@tantalophile.demon.co.uk)
Wed, 2 Jun 1999 18:07:19 +0200
Riley Williams wrote:
> > echo $[`TZ=UTC date +%s`-`cut -d . -f 1 < /proc/uptime`]
>
> OK, if you're going to deliberately mangle your system clock in some
> random way, then that will break, but if you're referring to changes
> from winter to summer time and back again, then the above will deal
> with that quite happily...
Unfortunately any system that synchronises its clock over the network
will tend to mangle the system clock a little at each adjustment.
I don't know if this is magically corrected in the uptime counter.
-- Jamie
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