Maintenance Commands¶

These three maintenance commands put your ownCloud server into maintenance and single-user mode, and run repair steps during updates.

You must put your ownCloud server into maintenance mode whenever you perform an update or upgrade. This locks the sessions of all logged-in users, including administrators, and displays a status screen warning that the server is in maintenance mode. Users who are not already logged in cannot log in until maintenance mode is turned off. When you take the server out of maintenance mode logged-in users must refresh their Web browsers to continue working:

$ sudo -u www-data php occ maintenance:mode --on
$ sudo -u www-data php occ maintenance:mode --off

Putting your ownCloud server into single-user mode allows admins to log in and work, but not ordinary users. This is useful for performing maintenance and troubleshooting on a running server:

$ sudo -u www-data php occ maintenance:singleuser --on
  Single user mode enabled

And turn it off when you’re finished:

$ sudo -u www-data php occ maintenance:singleuser --off
  Single user mode disabled

The maintenance:repair command runs automatically during upgrades to clean up the database, so while you can run it manually there usually isn’t a need to:

$ sudo -u www-data php occ maintenance:repair
  - Repair mime types
  - Repair config

User Commands¶

The user commands reset passwords, display a simple report showing how many users you have, and when a user was last logged in.

You can reset any user’s password, including administrators (see Resetting a Lost Admin Password). In this example the username is layla:

$ sudo -u www-data php occ user:resetpassword layla
  Enter a new password:
  Confirm the new password:
  Successfully reset password for layla

View a user’s most recent login:

$ sudo -u www-data php occ user:lastseen layla
layla's last login: 09.01.2015 18:46

Generate a simple report that counts all users, including users on external user authentication servers such as LDAP:

$ sudo -u www-data php occ user:report
+------------------+----+
| User Report      |    |
+------------------+----+
| Database         | 12 |
| LDAP             | 86 |
|                  |    |
| total users      | 98 |
|                  |    |
| user directories | 2  |
+------------------+----+

Apps Commands¶

The app commands list, enable, and disable apps. This lists all of your installed apps, and shows whether they are enabled or disabled:

$ sudo -u www-data php occ app:list

Enable an app:

$ sudo -u www-data php occ app:enable external
  external enabled

Disable an app:

$ sudo -u www-data php occ app:disable external
  external disabled

Upgrade Command¶

When you are performing an update or upgrade on your ownCloud server (see the Maintenance section of this manual), it is better to use occ to perform the database upgrade step, rather than the Web GUI, in order to avoid timeouts. PHP scripts invoked from the Web interface are limited to 3600 seconds. In larger environments this may not be enough, leaving the system in an inconsistent state. Use this command to upgrade your databases:

$ sudo -u www-data php occ upgrade

Before completing the upgrade, ownCloud first runs a simulation by copying all database tables to a temporary directory and then performing the upgrade on them, to ensure that the upgrade will complete correctly. This takes twice as much time, which on large installations can be many hours, so you can omit this step with the --skip-migration-test option:

$ sudo -u www-data php occ upgrade --skip-migration-test

You can perform this simulation manually with the --dry-run option:

$ sudo -u www-data php occ upgrade --dry-run

Database Conversion¶

The SQLite database is good for testing, and for ownCloud servers with small workloads, but production servers with multiple users should use MariaDB, MySQL, or PostgreSQL. You can use occ to convert from SQLite to one of these other databases. You need:

• Your desired database installed and its PHP connector
• The login and password of a database admin user
• The database port number, if it is a non-standard port

This is example converts to MySQL/MariaDB:

$ sudo -u www-data php occ db:generate-change-script
$ sudo -u www-data php occ db:convert-type mysql oc_dbuser 127.0.0.1
oc_database

For a more detailed explanation see Converting From SQLite to MySQL, MariaDB, or PostgreSQL

LDAP Commands¶

You can run the following LDAP commands with occ.

Search for an LDAP user, using this syntax:

$ sudo -u www-data php occ ldap:search [--group] [--offset="..."]
[--limit="..."] search

This example searches for usernames that includes “rob”:

$ sudo -u www-data php occ ldap:search rob

You can see your whole LDAP configuration, or the configuration for a single configID:

$ sudo -u www-data php occ ldap:show-config
$ sudo -u www-data php occ ldap:show-config s01

The ldap:set-config command is for manipulating configurations, like this example that sets search attributes:

$ sudo -u www-data php occ ldap:set-config s01 ldapAttributesForUserSearch
"cn;givenname;sn;displayname;mail"

ldap:test-config tests whether your configuration is correct can bind to the server:

$ sudo -u www-data php occ ldap:test-config ""
The configuration is valid and the connection could be established!

File Scanning¶

The files:scan command scans for new files for the file cache, and isn’t intended to be run manually.