Showing posts with label cronjob. Show all posts
Showing posts with label cronjob. Show all posts

June 06, 2014

OSX cronjob with GNU screen fails to run reporting "Must be connected to a terminal."


OSX crontab (cronjob) with GNU "screen" fails to run reporting "Must be connected to a terminal."


I had set a cronjob to run using the "screen" command,

0 * * * * /path/to/script.sh


where my script is:

#!/bin/bash
/usr/bin/screen -S taskname /usr/bin/nice mycommand


but it failed to run.  To figure out the problem, i redirected output to a log.

0 * * * * /path/to/script.sh > ~/mylog.log


The log reported "Must be connected to a terminal."

The solution is to add the -d -m options to screen:

#!/bin/bash
/usr/bin/screen -d -m -S taskname /usr/bin/nice mycommand


w00t!

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