4-Docker命令之docker info

后续为大家逐个讲解一下docker常用命令及其相关用法。docker常用命令查看如下：

[root@centos79 ~]# docker --help

Usage:  docker [OPTIONS] COMMAND

A self-sufficient runtime for containers

Common Commands:
  run         Create and run a new container from an image
  exec        Execute a command in a running container
  ps          List containers
  build       Build an image from a Dockerfile
  pull        Download an image from a registry
  push        Upload an image to a registry
  images      List images
  login       Log in to a registry
  logout      Log out from a registry
  search      Search Docker Hub for images
  version     Show the Docker version information
  info        Display system-wide information

Management Commands:
  builder     Manage builds
  buildx*     Docker Buildx (Docker Inc., v0.11.2)
  compose*    Docker Compose (Docker Inc., v2.21.0)
  container   Manage containers
  context     Manage contexts
  image       Manage images
  manifest    Manage Docker image m