turning a computer off after 12h of inactivity
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From: yawnmoth on 3 Oct 2009 23:26 I'd like to make it so my computer turns off after 12h of inactivity. Any ideas as to how I might go about doing this?
From: Loki Harfagr on 4 Oct 2009 06:24 Sat, 03 Oct 2009 20:26:07 -0700, yawnmoth did cat : > I'd like to make it so my computer turns off after 12h of inactivity. > Any ideas as to how I might go about doing this? you'll need to first define inactivity, as to its own "eye" a computer is always 'active'.
From: yawnmoth on 4 Oct 2009 11:12 On Oct 4, 5:24 am, Loki Harfagr <l...(a)thedarkdesign.free.fr.INVALID> wrote: > Sat, 03 Oct 2009 20:26:07 -0700, yawnmoth did cat : > > > I'd like to make it so my computer turns off after 12h of inactivity. > > Any ideas as to how I might go about doing this? > > you'll need to first define inactivity, as to its > own "eye" a computer is always 'active'. No keyboard or mouse movements. Like how a screensaver defines no activity.
From: Rikishi42 on 4 Oct 2009 11:24 On 2009-10-04, yawnmoth <terra1024(a)yahoo.com> wrote: > I'd like to make it so my computer turns off after 12h of inactivity. > Any ideas as to how I might go about doing this? 12h without any login, no problem. 12h of inactivity... The machine is allways doing something or other. If you're the only user on the machine, you could check that no processes are running under your name, but even that wouldn't work because you can have a cron job running. Or you would be logged in graphically, in which case there a allways a number of processes running under your name. If all else fails, you could make a kind of dead man's break I guess. -- Any time things appear to be going better, you have overlooked something.
From: Loki Harfagr on 4 Oct 2009 13:06
Sun, 04 Oct 2009 08:12:59 -0700, yawnmoth did cat : > On Oct 4, 5:24 am, Loki Harfagr <l...(a)thedarkdesign.free.fr.INVALID> > wrote: >> Sat, 03 Oct 2009 20:26:07 -0700, yawnmoth did cat : >> >> > I'd like to make it so my computer turns off after 12h of inactivity. >> > Any ideas as to how I might go about doing this? >> >> you'll need to first define inactivity, as to its own "eye" a computer >> is always 'active'. > > No keyboard or mouse movements. Like how a screensaver defines no > activity. OK, then it'd be a matter of "watching these devices" (meanwhile I'd say the best would be to do it "physically", something like using a live plug with a countdown, or even make up a kitchen clockwork you'd re-rotate its head when you're still here/living/awaken ;-) Now, on the IT level I suppose there are many existing tools but if, as I suppose, your question was about how to try and do it for fun here's a possible idea on the way I [cw]ould do it: prepare a script to be launched as root in you favorite init.d or rc.d file which would consist on loops that'd "test and set" your input devices when used, quick example here for mouse: ------------ while true;do dd if=/dev/input/mice of=/dev/shm/_tinkle bs=1 count=1 &>/dev/null;done & ------------ then, a simple crontab entry would trigger the nap attack, e-g: easy test: ------------ find /dev/shm/ -type f -name _tinkle -mmin +3 -exec echo "BOUH" \; ------------ or, in your case: ------------ find /dev/shm/ -type f -name _tinkle -mmin +720 -exec halt \; ------------ |