Using the occ command we can control Owncloud in many ways. Very useful for situations where you can’t access the web frontend due to a broken upgrade or application.

The occ command is available from Owncloud 7 and later.

For example to disable the calendar application we run:

sudo -u www-data php -f occ app:disable calendar

And to enable the app again:

sudo -u www-data php -f occ app:enable calendar

To find the application’s name look in the owncloud/apps folder or just use the app:list command.

My output looks like this on Owncloud 8.0.0

sudo -u www-data php occ app:list
Enabled:
 - activity
 - admin_dependencies_chk
 - bookmarks
 - documents
 - external
 - files
 - files_external
 - files_pdfviewer
 - files_sharing
 - files_texteditor
 - files_trashbin
 - files_versions
 - files_videoviewer
 - firstrunwizard
 - gallery
 - mozilla_sync
 - music
 - rainloop
 - search_lucene
 - templateeditor
 - updater
 - user_external
Disabled:
 - calendar
 - contacts
 - files_encryption
 - files_locking
 - provisioning_api
 - tasks_enhanced
 - user_ldap
 - user_webdavauth