occ命令是ownCloud/Nextcloud的命令行界面。您可以使用occ执行许多常见的服务器操作，例如安装和升级ownCloud/Nextcloud，管理用户，加密，密码，LDAP设置等。
OCC命令行工具详解
[ssbluelist] [/ssbluelist]使用OCC命令
OCC文件是使用PHP编写的，首先你要找到OCC文件在哪里它在ownCloud/Nextcloud根目录里，比如/var/www/html/owncloud/OCC，请确认OCC文件的用户和组均为网页服务器用户，且用户和组权限可读可执行
Ubuntu/Debian用户可以直接在ownCloud/Nextcloud根目录下执行：
sudo -u www-data php occ #以www-data用户身份执行OCC文件
会输出以下内容（以Nextcloud为例）：
Nextcloud version 11.0.1
Usage:
command [options] [arguments]
Options:
-h, --help Display this help message
-q, --quiet Do not output any message
-V, --version Display this application version
--ansi Force ANSI output
--no-ansi Disable ANSI output
-n, --no-interaction Do not ask any interactive question
--no-warnings Skip global warnings, show command output only
-v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
Available commands:
_completion BASH completion hook.
check check dependencies of the server environment
help Displays help for a command
list Lists commands
status show some status information
upgrade run upgrade routines after installation of a new release. The release has to be installed before.
app
app:check-code check code to be compliant
app:disable disable an app
app:enable enable an app
app:getpath Get an absolute path to the app directory
app:list List all available apps
background
background:ajax Use ajax to run background jobs
background:cron Use cron to run background jobs
background:webcron Use webcron to run background jobs
config
config:app:delete Delete an app config value
config:app:get Get an app config value
config:app:set Set an app config value
config:import Import a list of configs
config:list List all configs
config:system:delete Delete a system config value
config:system:get Get a system config value
config:system:set Set a system config value
dav
dav:create-addressbook Create a dav addressbook
dav:create-calendar Create a dav calendar
dav:sync-birthday-calendar Synchronizes the birthday calendar
dav:sync-system-addressbook Synchronizes users to the system addressbook
db
db:convert-type Convert the Nextcloud database to the newly configured one
db:generate-change-script generates the change script from the current connected db to db_structure.xml
encryption
encryption:change-key-storage-root Change key storage root
encryption:decrypt-all Disable server-side encryption and decrypt all files
encryption:disable Disable encryption
encryption:enable Enable encryption
encryption:encrypt-all Encrypt all files for all users
encryption:list-modules List all available encryption modules
encryption:set-default-module Set the encryption default module
encryption:show-key-storage-root Show current key storage root
encryption:status Lists the current status of encryption
federation
federation:sync-addressbooks Synchronizes addressbooks of all federated clouds
files
files:cleanup cleanup filecache
files:scan rescan filesystem
files:transfer-ownership All files and folders are moved to another user - shares are moved as well.
files_external
files_external:applicable Manage applicable users and groups for a mount
files_external:backends Show available authentication and storage backends
files_external:config Manage backend configuration for a mount
files_external:create Create a new mount configuration
files_external:delete Delete an external mount
files_external:export Export mount configurations
files_external:import Import mount configurations
files_external:list List configured admin or personal mounts
files_external:notify Listen for active update notifications for a configured external mount
files_external:option Manage mount options for a mount
files_external:verify Verify mount configuration
group
group:adduser add a user to a group
group:list list configured groups
group:removeuser remove a user from a group
integrity
integrity:check-app Check integrity of an app using a signature.
integrity:check-core Check integrity of core code using a signature.
integrity:sign-app Signs an app using a private key.
integrity:sign-core Sign core using a private key.
l10n
l10n:createjs Create javascript translation files for a given app
log
log:file manipulate logging backend
log:manage manage logging configuration
maintenance
maintenance:data-fingerprint update the systems data-fingerprint after a backup is restored
maintenance:mimetype:update-db Update database mimetypes and update filecache
maintenance:mimetype:update-js Update mimetypelist.js
maintenance:mode set maintenance mode
maintenance:repair repair this installation
maintenance:singleuser set single user mode
maintenance:update:htaccess Updates the .htaccess file
security
security:certificates list trusted certificates
security:certificates:import import trusted certificate
security:certificates:remove remove trusted certificate
trashbin
trashbin:cleanup Remove deleted files
trashbin:expire Expires the users trashbin
twofactorauth
twofactorauth:disable Disable two-factor authentication for a user
twofactorauth:enable Enable two-factor authentication for a user
user
user:add adds a user
user:delete deletes the specified user
user:disable disables the specified user
user:enable enables the specified user
user:info show user info
user:lastseen shows when the user was logged in last time
user:list list configured users
user:report shows how many users have access
user:resetpassword Resets the password of the named user
user:setting Read and modify user settings
versions
versions:cleanup Delete versions
versions:expire Expires the users file versions
在CentOS中，命令是这样的：
sudo -u apache php occ
区别就是Ubuntu和CentOS的http服务器用户不同
使用它！
1，遇到一个新命令行工具，我们首先要help一下。sudo -u www-data php occ -h输出如下
Usage:
help [options] [--] [<command_name>] #格式：help [选项] [--] [命令名]
Arguments:
command The command to execute
command_name The command name [default: “help”] #命令名（对应使用格式中的“命令名”）
Options: #选项
–format=FORMAT The output format (txt, xml, json, or md) [default: “txt”] #输出格式，默认为txt，下文中有讲
–raw To output raw command help #输出原始命令帮助
-h, –help Display this help message #显示帮助信息
-q, –quiet Do not output any message #不输出任何信息
-V, –version Display this application version #显示程序版本
–ansi Force ANSI output #强制使用ANSI格式输出
–no-ansi Disable ANSI output #禁用ANSI输出
-n, –no-interaction Do not ask any interactive question #不要询问任何问题（所有选项默认，大概这个意思）
–no-warnings Skip global warnings, show command output only #跳过错误信息
-v|vv|vvv, –verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
增加消息的详细程度：1用于正常输出，2用于更详细的输出，3用于调试
Help:
The help command displays help for a given command: #详细地，查看一个命令的使用方法，例如：
php occ help list
You can also output the help in other formats by using the –format option:
php occ help –format=xml list
To display the list of available commands, please use the list command.
使用-h选项获取一个命令的详细信息，比如我要查询maintenance:mode（维护模式）命令的使用方式
输入
sudo -u www-data php occ help maintenance:mode
Usage:
maintenance:mode [options] #格式： maintenance:mode+选项（即maintenance:mode后面跟选项）
Options: #选项（对应上面格式中的“选项”）
--on enable maintenance mode #激活维护模式
--off disable maintenance mode #关闭维护模式
-h, --help Display this help message #显示帮助信息，即本段信息
-q, --quiet Do not output any message #不输出任何信息
-V, --version Display this application version
--ansi Force ANSI output
--no-ansi Disable ANSI output
-n, --no-interaction Do not ask any interactive question
--no-warnings Skip global warnings, show command output only
-v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output,
2 for more verbose output and 3 for debug
2.显示ownCloud/Nextcloud版本
以Ubuntu、Nextcloud为例
sudo -u www-data php occ -V #选项为-V，注意大写
Nextcloud version 9.0.0 #Nextcloud版本为 9.0.0
3.查询您的Nextcloud服务器状态
sudo -u www-data php occ status - installed: true #安装状态：已安装 - version: 9.0.0.19 #版本：9.0.0.19 - versionstring: 9.0.0 #版本串：9.0.0 - edition: #发行版本，社区版不显示，企业版可能会显示
4.命令输出格式，可以输出txt, xml, json或 md格式的信息
比如以json格式输出服务器状态信息：
sudo -u www-data php occ status --output=json
{"installed":true,"version":"9.0.0.19","versionstring":"9.0.0","edition":""}
或者以json_pretty格式输出：
sudo -u www-data php occ status --output=json_pretty
{
"installed": true,
"version": "9.0.0.19",
"versionstring": "9.0.0",
"edition": ""
}
（这样，OCC命令可以作为一个API来使用）
5.命令自动补全
Nextcloud11后，OCC命令可以使用自动补全命令，你需要以下命令来设置自动补全
# BASH ~4.x, ZSH source <(/var/www/html/nextcloud/occ _completion --generate-hook) # BASH ~3.x, ZSH /var/www/html/nextcloud/occ _completion --generate-hook | source /dev/stdin # BASH (any version) eval $(/var/www/html/nextcloud/occ _completion --generate-hook)
设置后，只有提供OCC文件完整目录（比如/var/www/html/nextcloud/occ <tab>）才能使用自动补全。在–generate-hook之后指定–programm occ，便可无需在写完整目录。
这样，当你使用OCC命令行工具时，按下Tab键便可自动补全剩余的命令内容。
例如
输入
sudo -u www-data php occ sta
按Tab键，命令自动补全为：
sudo -u www-data php occ status
插件（APP）管理命令
使用以下命令列出、激活禁用插件app
app:check-code check code to be compliant #检查代码是否合法
app:disable disable an app #禁用一个插件（app）
app:enable enable an app #激活一个插件
app:getpath Get an absolute path to the app directory #获取应用程序目录的绝对路径
app:list List all available apps #列出所有可用的插件
命令示例：
sudo -u www-data php occ app:list
Enabled:
- activity: 2.4.1
- comments: 1.1.0
- dav: 1.1.1
- direct_menu: 0.10.0
- federatedfilesharing: 1.1.1
- federation: 1.1.1
- files: 1.6.1
- files_external: 1.1.2
- files_markdown: 1.0.0
- files_pdfviewer: 1.0.1
- files_sharing: 1.1.1
- files_texteditor: 2.2
- files_trashbin: 1.1.0
- files_versions: 1.4.0
- files_videoplayer: 1.0.0
- firstrunwizard: 2.0
- gallery: 16.0.0
- logreader: 2.0.0
- lookup_server_connector: 1.0.0
- nextcloud_announcements: 1.0
- notifications: 1.0.1
- password_policy: 1.1.0
- provisioning_api: 1.1.0
- serverinfo: 1.1.1
- sharebymail: 1.0.1
- survey_client: 0.1.5
- systemtags: 1.1.3
- theming: 1.1.1
- twofactor_backupcodes: 1.0.0
- updatenotification: 1.1.1
- user_saml: 1.2.2
- workflowengine: 1.1.1
Disabled:
- admin_audit
- encryption
- external
- files_accesscontrol
- files_automatedtagging
- files_retention
- spreed
- spreedme
- templateeditor
- user_external
- user_ldap
1.激活一个插件：
sudo -u www-data php occ app:enable files_automatedtagging #激活此插件
files_automatedtagging enabled
禁用插件的方法与此类似
2.app：check-code检查多个项目：它检查应用程序是否使用Nextcloud的公共API（OCP）或私有API（OC_），它还检查已弃用的方法和info.xml文件的有效性。默认情况下启用所有检查。活动应用程式是正确格式的应用程式范例：
sudo -u www-data php occ app:check-code notifications App is compliant - awesome job
如果插件有错误：
sudo -u www-data php occ app:check-code foo_app Analysing /var/www/nextcloud/apps/files/foo_app.php 4 errors line 45: OCP\Response - Static method of deprecated class must not be called line 46: OCP\Response - Static method of deprecated class must not be called line 47: OCP\Response - Static method of deprecated class must not be called line 49: OC_Util - Static method of private class must not be called
3.获取插件的绝对目录
sudo -u www-data php occ app:getpath notifications /var/www/nextcloud/apps/notifications
选择后台任务执行方式
使用background命令选择要用于控制后台作业（Ajax，Webcron或Cron）的调度程序。这与在您的Nextcloud Admin页面上使用Cron部分相同：background background:ajax Use ajax to run background jobs background:cron Use cron to run background jobs background:webcron Use webcron to run background jobs例如，选择ajax为后台任务执行方式
sudo -u www-data php occ background:ajax Set mode for background jobs to 'ajax'其它的：
- background:cron
- background:webcron
配置命令
使用config命令来配置服务器：config config:app:delete Delete an app config value config:app:get Get an app config value config:app:set Set an app config value config:import Import a list of configs config:list List all configs config:system:delete Delete a system config value config:system:get Get a system config value config:system:set Set a system config value列出所有设置值（即配置信息）：
sudo -u www-data php occ config:list
列出的内容中隐藏了诸如用户名、密码等信息，可以后加--private参数来显示：
sudo -u www-data php occ config:list --private将配置信息导出为指定格式：
sudo -u www-data php occ config:list --private
P.S.：虽然config命令也可以设置插件的状态，但最好还是用app:命令实现。获取单个配置信息：
sudo -u www-data php occ config:system:get version #获取版本信息
9.0.0.19
sudo -u www-data php occ config:app:get activity installed_version #获取一个插件的版本信息
2.2.1
设置单个配置信息：
sudo -u www-data php occ config:system:set logtimezone --value="Europe/Berlin" #设置时区
System config value logtimezone set to Europe/Berlin
sudo -u www-data php occ config:app:set files_sharing #设置插件状态
incoming_server2server_share_enabled --value="yes" --type=boolean
Config value incoming_server2server_share_enabled for app files_sharing set to yes
如果配置信息不存在，在使用config:system:set命令时会自动创建不存在的值。如果你不想它被创建，在后面加上–update-only
sudo -u www-data php occ config:system:set doesnotexist --value="true"
--type=boolean --update-only
Value not updated, as it has not been set before.
请注意，为了将布尔值，浮点值或整数值写入配置文件，需要在命令中指定类型。这仅适用于config：system：set命令。以下值是已知的：
- boolean
- integer
- float
- string (默认)
sudo -u www-data php occ config:system:set maintenance --value=false --type=boolean Nextcloud is in maintenance mode - no app have been loaded System config value maintenance set to boolean false
设置不同数组的信息
呃，可能你没理解这是什么意思，以信任域（trust_domains）为例，它在config.php中是这样写的
如图，“0”对应第一个信任域“192.168.3.4”，“1”对应第二个信任域“cloud.nosu.win”
那我们可以在设置信任域中直接指定要修改第几个：
sudo -u www-data php occ config:system:set trusted_domains 1
--value=example.com #指定设置“1”对应的信任域为“example.com”
System config value trusted_domains => 2 set to string example.com
sudo -u www-data php occ config:system:get trusted_domains
localhost
nextcloud.local
example.com
在config.php中体现为：
删除单个设置值
sudo -u www-data php occ config:system:delete maintenance:mode #删除maintenance:mode的设置值
System config value maintenance:mode deleted
sudo -u www-data php occ config:app:delete appname provisioning_api
Config value provisioning_api of app appname deleted
如果设置项本来就不存在，将不会有任何输出，你可以在后面加上–error-if-not-exists来显示错误：
sudo -u www-data php occ config:system:delete doesnotexist
--error-if-not-exists
Config provisioning_api of app appname could not be deleted because it did not
exist
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