Tools, FAQ, Tutorials:
"docker help" Commands
How use the "docker help" command?
✍: FYIcenter.com
The "docker help" command allows you to learn how to use "docker" command.
It has 3 levels of helps.
1. "docker help" - Top level help. It lists top level commands and options. For example:
fyicenter# docker help Usage: docker [OPTIONS] COMMAND A self-sufficient runtime for containers Options: --config string Location of client config files (default "/root/.docker") -H, --host list Daemon socket(s) to connect to -v, --version Print version information and quit Management Commands: app* Docker App (Docker Inc., v0.9.1-beta3) builder Manage builds buildx* Build with BuildKit (Docker Inc., v0.5.1-docker) config Manage Docker configs container Manage containers context Manage contexts image Manage images ...
2. "docker help <command>" - Command level help. It lists sub-commands of a given top level command. For example:
fyicenter# docker help container Usage: docker container COMMAND Manage containers Commands: attach Attach local standard input, output, and error streams to a running container 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 exec Run a command in a running container export Export a container's filesystem as a tar archive inspect Display detailed information on one or more containers kill Kill one or more running containers logs Fetch the logs of a container ...
2. "docker help <command> <sub-command>" - Sub-command level help. It lists options of a given sub-command. For example:
fyicenter# docker help container exec Usage: docker container exec [OPTIONS] CONTAINER COMMAND [ARG...] Run a command in a running container Options: -d, --detach Detached mode: run command in the background --detach-keys string Override the key sequence for detaching a container -e, --env list Set environment variables --env-file list Read in a file of environment variables -i, --interactive Keep STDIN open even if not attached --privileged Give extended privileges to the command -t, --tty Allocate a pseudo-TTY -w, --workdir string Working directory inside the container ...
⇒ "docker container ..." Commands
2023-03-07, 436👍, 0💬
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