Tools, FAQ, Tutorials:
"docker container exec" - Execute Command on Running Container
How to Execute an extra Command on a Running Container using the "docker container exec" command?
✍: FYIcenter.com
Since Linux system is a multi-tasking system, you can send an extra command
to be executed on a running Alpine container.
1. Check the container status to make it is still running.
fyicenter$ docker container list --latest CONTAINER ID IMAGE COMMAND CREATED STATUS NAMES a4570be81d29 alpine "sleep 36000" 8 minutes ago Up 8 minutes 3rd_alpine
2. Send another command to be executed on the container.
fyicenter$ docker container exec 3rd_alpine ps -ef PID USER TIME COMMAND 1 root 0:00 sleep 36000 6 root 0:00 ps -ef
As you can see, the second command, "ps -ef", was executed correctly on the container. The output tells us that the Alpine container is not busy at all. Only 2 processes are running in there!
⇒ "docker container exec --tty --interactive" - Attach to Container
⇐ "docker container run --detached" - Run Container in Background
2019-02-17, 1089🔥, 0💬
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