NextCloud

h1. Essential Commands for Managing Apps with 'occ'

The sudo -u www-data php occ command in Nextcloud allows you to execute various administrative tasks and commands. Here are some common commands you can use with occ:

*occ app:list* : Lists all installed apps and their versions.

*occ app:enable <app_name>* : Enables a specific app.

*occ app:disable <app_name>* : Disables a specific app.

*occ app:update <app_name>* : Updates a specific app to the latest version.

*occ maintenance:mode --on* : Puts Nextcloud into maintenance mode, preventing user access.

*occ maintenance:mode --off* : Takes Nextcloud out of maintenance mode, allowing regular user access.

*occ db:add-missing-indices* : Adds missing database indices for performance optimization.

*occ db:convert-filecache-bigint* : Converts file cache to use bigint for large installations.

*occ config:system:set <parameter> --value=<value>* : Sets a configuration parameter with the specified value.

*occ config:system:get <parameter>* : Retrieves the value of a specific configuration parameter.

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h3. *User Management:*

*occ user:list* : Lists all users in Nextcloud.

*occ user:add <username> --password=<password>* : Adds a new user.

*occ user:delete <username>* : Deletes a user.

*occ user:resetpassword <username>* : Resets the password for a user.

h3. *Group Management:*

*occ group:list* : Lists all groups in Nextcloud.

*occ group:add <groupname>* : Adds a new group.

*occ group:delete <groupname>* : Deletes a group.

*occ group:adduser <groupname> <username>* : Adds a user to a group.

*occ group:removeuser <groupname> <username>* : Removes a user from a group.

h3. *File Operations:*

*occ files:scan <user>* : Triggers a rescan of files for a specific user.

*occ files:cleanup* : Cleans up file versions and deleted files.

*Server Maintenance:*

*occ maintenance:repair* : Performs repair operations on the Nextcloud instance.

*occ maintenance:update:htaccess* : Updates the .htaccess file.

h3. *Logs and Debugging:*

*occ log:manage* : Manages log files.

*occ log:show <file>* : Displays the contents of a log file.

h3. *App Management:*

*occ app:check-code <app_name>* : Checks the code of an app for potential issues.

*occ app:install <app_name>* : Installs a specific app.

*occ app:uninstall <app_name>* : Uninstalls a specific app.

*occ app:enable <app_name>* : Enables a specific app.

*occ app:disable <app_name>* : Disables a specific app.

*occ app:update <app_name>* : Updates a specific app to the latest version.

*h3. Background Jobs:*

*occ background:webcron* : Executes Nextcloud background jobs via the webcron method.

*occ background:cron* : Executes Nextcloud background jobs via the system cron method.

h3. *Encryption and Security:*

occ encryption:enable: Enables server-side encryption.

occ encryption:disable: Disables server-side encryption.

occ encryption:scan: Scans and repairs encrypted files.

h3. *Sharing and Collaboration:*

*occ files:scan-app-data* : Rescans the app data folder.

*occ files:scan:all* : Rescans all files for all users.

*occ group:adduser <groupname> <username>* : Adds a user to a group.

*occ group:removeuser <groupname> <username>* : Removes a user from a group.

h3. *Database and Maintenance:*

*occ db:add-missing-indices* : Adds missing database indices for performance optimization.

*occ db:convert-filecache-bigint* : Converts file cache to use bigint for large installations.

*occ maintenance:mode --on* : Puts Nextcloud into maintenance mode.

*occ maintenance:mode --off* : Takes Nextcloud out of maintenance mode.

h3. *System Information and Status:*

*occ status* : Displays the system status and information.

*occ status --output=json* : Retrieves the system status in JSON format.

h3. *Theming and Customization:*

*occ config:system:set theme <theme_name>* : Sets the active theme for Nextcloud.

*occ config:system:set logo <path_to_logo>* : Sets a custom logo for Nextcloud.

*occ config:system:set background <path_to_background_image>* : Sets a custom background image for Nextcloud.

h3. *Collaborative Tags:*

*occ dav:sync-system-tags* : Synchronizes system tags across all files.

h3. *External Storage Management:*

*occ files_external:list* : Lists all external storage configurations.

*occ files_external:info <config_id>* : Displays information about a specific external storage configuration.

*occ files_external:create <backend> <config_id> <config_options>* : Creates a new external storage configuration.

*occ files_external:delete <config_id>* : Deletes an external storage configuration.

h3. *Configuring and Checking Integrity:*

*occ config:system:set <parameter> --value=<value>* : Sets a configuration parameter with the specified value.

*occ config:system:get <parameter>* : Retrieves the value of a specific configuration parameter.

*occ integrity:check-core* : Checks the integrity of Nextcloud core files.