docker --help命令输出的所有内容及解析

`docker --help`命令可以列出所有 Docker 命令及其选项的详细说明。下面是`docker --help`命令输出的所有内容及解析：

Usage: docker [OPTIONS] COMMAND [ARG...]

Docker CLI

Options:
      --config string      Location of client config files (default "/home/user/.docker")
  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var and default context set with "docker context use")
  -D, --debug              Enable debug mode
      --help               Print usage
  -H, --host list          Daemon socket(s) 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 "/home/user/.docker/ca.pem")
      --tlscert string     Path to TLS certificate file (default "/home/user/.docker/cert.pem")
      --tlskey string      Path to TLS key file (default "/home/user/.docker/key.pem")
      --tlsverify          Use TLS and verify the remote
  -v, --version            Print version information and quit

Management Commands:
  builder     Manage builds
  config      Manage Docker configs
  container   Manage containers
  context     Manage contexts
  image       Manage images
  network     Manage networks
  node        Manage Swarm nodes
  plugin      Manage plugins
  secret      Manage Docker secrets
  service     Manage services
  stack       Manage Docker stacks
  swarm       Manage Swarm
  system      Manage Docker
  trust       Manage trust on Docker images
  volume      Manage volumes

Commands:
  attach      Attach local standard input, output, and error streams to a running container
  build       Build an image from a Dockerfile
  commit      Create a new image from a container's changes
  cp          Copy files/folders between a container and the local filesystem
  create      Create a new container
  diff        Inspect changes to files or directories on a container's filesystem
  events      Get real time events from the server
  exec        Run a command in a running container
  export      Export a container's filesystem as a tar archive
  history     Show the history of an image
  images      List images
  import      Import the contents from a tarball to create a filesystem image
  info        Display system-wide information
  inspect     Return low-level information on Docker objects
  kill        Kill one or more running containers
  load        Load an image from a tar archive or STDIN
  login       Log in to a Docker registry
  logout      Log out from a Docker registry
  logs        Fetch the logs of a container
  pause       Pause all processes within one or more containers
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image or a repository from a registry
  push        Push an image or a repository to a registry
  rename      Rename a container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Remove one or more images
  run         Run a command in a new container
  save        Save one or more images to a tar archive (streamed to STDOUT by default)
  search      Search the Docker Hub for images
  start       Start one or more stopped containers
  stats       Display a live stream of container(s) resource usage statistics
  stop        Stop one or more running containers
  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  top         Display the running processes of a container
  unpause     Unpause all processes within one or more containers
  update      Update configuration of one or more containers
  version     Show the Docker version information
  wait        Block until one or more containers stop, then print their exit codes

Run 'docker COMMAND --help' for more information on a command.

上面的输出内容可以分为两部分：

1. Options：Docker 客户端的选项，包括：
- `--config`: 指定客户端配置文件的位置。
- `-c, --context`: 指定连接到守护进程的上下文。
- `-D, --debug`: 启用调试模式。
- `--help`: 打印使用帮助。
- `-H, --host`: 指定要连接的守护进程套接字。
- `-l, --log-level`: 设置日志记录级别。
- `--tls`: 使用 TLS。
- `--tlscacert`: 指定信任的 CA 证书。
- `--tlscert`: 指定 TLS 证书文件的路径。
- `--tlskey`: 指定 TLS 密钥文件的路径。
- `--tlsverify`: 使用 TLS 并验证远程主机。
- `-v, --version`: 打印版本信息并退出。

2. Management Commands 和 Commands：Docker 的管理命令和常规命令。其中，管理命令用于管理 Docker 的各种资源，常规命令用于执行各种操作，例如创建容器、运行容器、获取容器日志等等。可以通过`docker COMMAND --help`来查看每个命令的详细说明。