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3

What does "command returned 1" mean?

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3371 / 3 Years ago, sun, october 24, 2021, 5:20:18

I am trying to get a command to execute from within my MythTV interface on a Mythbuntu computer.

When I try a test command, touch /home/mythbuntu/test, it doesn't work, and I see this entry in /var/log/mythtv/mythbackend.log:

Jul 19 14:29:35 mythbuntu mythbackend[1863]: W SystemEvent mythsystemevent.cpp:55 (run) MythSystemEventHandler: Command 'touch /home/mythbuntu/test' returned 1

I assume returned 1 means some kind of error status, but a Google search didn't result in anything I could understand.

What does returned 1 mean, and what does it tell me about the command I'm trying to run?

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dicatandyca

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answered 3 Years ago egantfis · Accepted Answer

It is not in the Ubuntu manpage for touch but the exit status for touch are:

0 The touch utility executed successfully and all requested changes were made.

>0 An error occurred. The touch utility returned the number of files for
which the times could not be successfully modified.

So the 1 is the amount of times touch failed to execute. Most likely you are not using the correct user or group to issue this command with so check user and group permissions of the file you are trying to modify with

ls -l /home/mythbuntu/test

If it is user:group mythtv:mythtv you need to add your user to group mythtv for touch to work.