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My sites are running Drupal 7, Drush 8.0.3.

I'm creating a dashboard to check what core and module versions my Drupal sites are running (they're all on the same server). I use a shell script to get Drush to check available updates, write them to a JSON file then my dashboard script reads the JSON file.

/usr/local/bin/drush --root=/home/www/html/www.mysite.com rf
/usr/local/bin/drush --root=/home/www/html/www.mysite.com ups --security-only --format=json > /home/www/html-private/mysite.json

This works fine but the problem I have is that when there are no updates available I get an empty JSON file. How can I tell the difference between this and a failure to write the JSON properly? Can I get it to output 'No updates available' or something so I can tell it ran correctly?

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Did you check to see if $? is correctly set? It should be 0 for success, and 1 if there was an error. Please open an issue in the Drush queue if this is not the case.

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  • I'm not sure I understand, how do I check $?
    – nexus_6
    Jan 17, 2017 at 14:30
  • if [[ $? -eq 0 ]]; then echo "OK"; else echo "NOT OK"; fi
    – hansfn
    Jan 18, 2017 at 9:33

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