Ubuntu – run command automatically right after wake up from standby (“sleep”)

kdekubuntustandby

How can I run a command automatically every time my systems wakes up from standby ("sleep")? I am using Kubuntu. (still 9.10 but I'll migrate soon to 10.4)

As the window manger is locked right after wake up it would suffice if the command is executed every time after unlocking the screen.

Best Answer

Using ACPI, you can configure scripts to run as certain events are triggered by the laptop. I used to run a script to reload errant network drivers after a restored from sleep. No idea if you have ACPI on your machine, or if you are using acpid, but thought I'd throw the suggestion out there.

Triggering off of a screen unlock is an entirely different thing and ACPI wouldn't apply there.

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Windows – Automatically run a script or a program on wake from standby in Windows 7

Here is a link to a script that monitors the event log. Check the log for what the message is for waking up from standby and you should be good to go.

Linux – How to find the uptime since last wake from standby

In /var/log/pm-suspend.log, look for the last line looking like this one:

Sun Dec 16 09:30:31 CET 2012: Awake.

That's your last wakeup time. You can calculate your uptime since then the way Paul suggested.

Periodically your logrotate will "rotate" logs to prevent them from growing too big, so you may find an empty pm-suspend.log file. In this case, just look for the pm-suspend.log.1 file (you may find also other log files named like pm-suspend.log.2.gz and so on; you can examine them using zcat or zless).

Best Answer

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Windows – Automatically run a script or a program on wake from standby in Windows 7

Linux – How to find the uptime since last wake from standby

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