2016-03-23 1:32 GMT+01:00 Kai Krakow <hurikha...@gmail.com>: > Am Mon, 21 Mar 2016 09:21:39 +0100 > schrieb Cecil Westerhof <cldwester...@gmail.com>: > > > When executing > > systemctl suspend || echo "Error code: ${?}" > > from the command-line it outputs > > Error code: 1 > > and it puts my machine in suspend. > > > > When putting it in cron it gives the following errors: > > Failed to execute operation: Access denied > > Failed to start suspend.target: Access denied > > and gives the output: > > Error code: 4 > > > > What is happening here? Is it possible to run 'systemctl suspend' from > > cron, or is there a reason why this is not possible? > > It's probably because cron doesn't setup a systemd session. Do you > eventually run from a user crontab?
I am not sure what you mean here. It was run from my user crontab. It is a simplification from what I want. I have a script that I like to put into systemd as a service, but there I get this error. Have you tried running from a root > crontab? > Just tried it and that works. One important difference: it returns an error code of 0 instead of 1. So probably I need to setup a systemd session. How am I going to do that? I would not want to run the script as root. The script is: https://github.com/CecilWesterhof/BashLibrary/blob/master/bin/suspend.sh Besides that I do not want to run a script as root when not necessary, with root in cron you get: No protocol specified xscreensaver-command: can't open display :0.0 with the initial while. Which I do not get when running as normal user. If you wondering why I wrote the script: https://www.linkedin.com/pulse/saving-netbook-battery-bash-script-cecil-westerhof -- Cecil Westerhof
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