1.Docker 命令列表

[root@host1 ~]# docker
Usage:  docker [OPTIONS] COMMANDA self-sufficient runtime for containersCommon Commands:run         Create and run a new container from an imageexec        Execute a command in a running containerps          List containersbuild       Build an image from a Dockerfilebake        Build from a filepull        Download an image from a registrypush        Upload an image to a registryimages      List imageslogin       Authenticate to a registrylogout      Log out from a registrysearch      Search Docker Hub for imagesversion     Show the Docker version informationinfo        Display system-wide informationManagement Commands:builder     Manage buildsbuildx*     Docker Buildxcompose*    Docker Composecontainer   Manage containerscontext     Manage contextsimage       Manage imagesmanifest    Manage Docker image manifests and manifest listsnetwork     Manage networksplugin      Manage pluginssystem      Manage Dockertrust       Manage trust on Docker imagesvolume      Manage volumesSwarm Commands:swarm       Manage SwarmCommands:attach      Attach local standard input, output, and error streams to a running containercommit      Create a new image from a container's changescp          Copy files/folders between a container and the local filesystemcreate      Create a new containerdiff        Inspect changes to files or directories on a container's filesystemevents      Get real time events from the serverexport      Export a container's filesystem as a tar archivehistory     Show the history of an imageimport      Import the contents from a tarball to create a filesystem imageinspect     Return low-level information on Docker objectskill        Kill one or more running containersload        Load an image from a tar archive or STDINlogs        Fetch the logs of a containerpause       Pause all processes within one or more containersport        List port mappings or a specific mapping for the containerrename      Rename a containerrestart     Restart one or more containersrm          Remove one or more containersrmi         Remove one or more imagessave        Save one or more images to a tar archive (streamed to STDOUT by default)start       Start one or more stopped containersstats       Display a live stream of container(s) resource usage statisticsstop        Stop one or more running containerstag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGEtop         Display the running processes of a containerunpause     Unpause all processes within one or more containersupdate      Update configuration of one or more containerswait        Block until one or more containers stop, then print their exit codesGlobal Options:--config string      Location of client config files (default "/root/.docker")-c, --context string     Name of the context to use to connect to the daemon (overridesDOCKER_HOST env var and default context set with "docker context use")-D, --debug              Enable debug mode-H, --host string        Daemon socket to connect to-l, --log-level string   Set the logging level ("debug", "info", "warn", "error", "fatal")(default "info")--tls                Use TLS; implied by --tlsverify--tlscacert string   Trust certs signed only by this CA (default "/root/.docker/ca.pem")--tlscert string     Path to TLS certificate file (default "/root/.docker/cert.pem")--tlskey string      Path to TLS key file (default "/root/.docker/key.pem")--tlsverify          Use TLS and verify the remote-v, --version            Print version information and quitRun 'docker COMMAND --help' for more information on a command. 
#提示用命令查看某條具體子命令的幫助信息。For more help on how to use Docker, head to https://docs.docker.com/go/guides/

例如，查看 tag 子命令的幫助信息

[root@host1 ~]# docker tag --help
Usage:  docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]Create a tag TARGET_IMAGE that refers to SOURCE_IMAGEAliases:docker image tag, docker tag

2.運行一個容器（以 docker run 命令為例）

[root@host1 ~]# docker run -i -t ubuntu /bin/bash
Unable to find image 'ubuntu:latest' locally
latest: Pulling from library/ubuntu
76249c7cd503: Pull complete 
Digest: sha256:9cbed754112939e914291337b5e554b07ad7c392491dba6daf25eef1332a22e8
Status: Downloaded newer image for ubuntu:latest
root@49e91767b48d:/# ls    #列出當前目錄內容
bin   dev  home  lib64  mnt  proc  run   srv  tmp  var
boot  etc  lib   media  opt  root  sbin  sys  usr
root@49e91767b48d:/# uname -a    #顯示當前操作系統內核信息
Linux 49e91767b48d 5.14.0-611.el9.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Aug 22 16:46:08 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
root@49e91767b48d:/# cat /etc/issue    #查看當前操作系統發行版信息
Ubuntu 24.04.3 LTS \n \lroot@49e91767b48d:/# exit    #結束，只停止不刪除
exit
[root@host1 ~]# docker ps -a    #查看當前容器列表
CONTAINER ID   IMAGE         COMMAND       CREATED              STATUS                      PORTS     NAMES
49e91767b48d   ubuntu        "/bin/bash"   About a minute ago   Exited (0) 21 seconds ago             frosty_lichterman
38b001022f7a   hello-world   "/hello"      29 minutes ago       Exited (0) 29 minutes ago             intelligent_brahmagupta