How can I pipe a docker ps output to a docker stop command?

Question

I want to stop all containers that have dev1102in their name. There are several containers but I never know how many. So I run docker ps |grep -o 'dev1102_[A-Za-z\_]*' which lists me all containers I need. Output looks like this

dev1102_abc_de
dev1102_admin
dev1102_app_qqq

How can I pipe this output into a docker stop command, so all the listed containers from the grep get stopped? I tried docker stop < docker ps |grep -o 'dev1102_[A-Za-z\_]*' but that results in a bash error:

-bash: docker: No such file or directory

Answer 1

docker stop $(docker ps | grep -o 'dev1102_[A-Za-z\_]*')

should do the job!

Answer 2

Another way is to pass the the output of docker ps | grep -o 'dev1102_[A-Za-z\_]*' to docker stop command with xargs like this:

docker ps | grep -o 'dev1102_[A-Za-z\_]*' | xargs -I {} docker stop {}

Here xargs -I {} docker stop {} placeholder {} is replaced by each container name.

Answer 3

I suggest to use restructured, new syntax of Docker CLI commands introduced in Docker 1.13. E.g. use docker container ls with filter flag, it is clean and more readable:

docker container stop $(docker container ls --all --quiet --filter "name=^dev1102_[A-Za-z\_]*")

If you want to get container names with docker container ls use --format "{{.Names}}" instead of --quiet.