On Mon, 9 Aug 2010, Boris Epstein wrote: > Hello all, > I've got a CentOS box that became non-responsive today for some > obscure reason and had to be rebooted. Is there a way to find out > when it last had to be rebooted before today? uptime gives you no > history past the very last reboot, so obviously I need to find some > other way to get an answer to my question. The last utility will do it: # simple, but needs eye-parsing last reboot # exact, but fragile if wtmp isn't old enough last reboot | head -n2 | tail -n1 but only if /var/log/wtmp is old enough. If your system rotates wtmp, then you'll have to spelunk /var/log/messages*. -- Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/