How does linux check whether docker started successfully?

Designed for programming, automatic code writing robot, free to open. This article introduces how linux can check whether docker is successfully started. Many people will encounter such difficulties in the operation of actual cases. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Ways to check whether docker started successfully in linux: 1. Use the systemctl list-units command, which can check the currently started services; 2. Use the systemctl command, which is used for service management. When the parameter is set to status, the current service status can be viewed. The syntax is systemctl status docker.

Operating environment of this tutorial: linux7.3 system and Dell G3 computer.

How does linux check whether docker has started a successful service: a process that resides in the system memory and can provide some system and network functions?

Now the latest Linux systems use systemctl for service management.

1. Management service systemctl (root privilege)

systemctl [opt] xxx.service

Status View the current service status

Start start service

Stop shutdown service

Restart service

Enable setting boot.

Disable setting boot does not start.

Reload is not followed by a specific service name, and the configuration file is reloaded.

Mask logout service

Unmask cancel logout

Examples are as follows:

Classification of runlevel runlevel

Run Level 0: System Down State

Operation level 1: single-user working status, root privilege, used for system maintenance, and remote login is prohibited.

Run level 2: multi-user state (no NFS)

Run level 3: Full multi-user state (with NFS)

Run Level 4: System Not Used, Reserved

Run Level 5: X11 Console

Run Level 6: The system shuts down and restarts normally.

2. Some common commands systemctl

View the currently started service systemctl list-units.

View all services systemctl list-unit-files

See which services depend on systemctllist-dependencies xx.service.

See which services depend on (reversely) systemctl list-dependencies-reversixx.service.

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