Docker replicates a specific operating environment on top of a host OS.Each environment is a “Container”.Managing containers is essential for working in containers.
The basic format for using docker is the following:
docker command [options]
List Docker Containers .
To list all running Docker containers:
docker ps
To list all containers, both running and stopped by .
docker ps –a
To list containers by their ID use –aq (quiet):
docker ps –aq
To list the entire file size of each containers, use –s (size):
docker ps –s
To list the latest created containers.
docker ps –l
Start Docker Container
The main command to launch or start is docker start:
docker start [options] container_id
You can specify the container by either using its name or ID.
To create a new container from an image and start it.
docker run [options] image [command] [argument]
To define theContainer name , use the -name option :
docker run ––name=Ubuntu_Test ubuntu:14.04
To start the containers in interactive mode, use the options -i and -t :
docker run –it ––name=Ubuntu_Test ubuntu:14.04
Instead of using -i or -t options, use the attach command.
docker attach container_id
Stop Docker Container
Use the docker stop command to stop.
docker stop [option] container_id
To stop all running containers.
docker stop $(docker ps –a –q)