Question 81455 in Docker Question posted in
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How to display total number of running containers in docker?

docker ps

Displays all the running containers

I want to display the total number of running containers

The command,

docker ps | wc -l

displays the line count but also counts headers as lines.

How do I exclude headers?
Also, is there another way to print the total number of running containers?

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2

Answers


  1. 0

    Have a look here
    https://docs.docker.com/engine/reference/commandline/ps/#formatting

    If you dont use the table directive it wont show the headers

    You should be able to pipe that in to wc -l

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  2. 0

    docker info display the number of running containers like next:

    Server:
Containers: 116
 Running: 3
 Paused: 0
 Stopped: 113

    You could format the output using next to get the running containers:

    $ docker info --format '{{json .ContainersRunning}}'
3
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