docker:tldr:e9fe3
docker: Apply a `CMD` Dockerfile instruction to the created image.
$ docker commit --change="CMD ${command}" ${container} ${image}:${tag}
try on your machine
This command is used in Docker to create a new image from an existing container, with some changes applied. Here's what each part of the command means:
docker commit
: This command is used to create a new image from a container.--change="CMD ${command}"
: This flag specifies a change that should be applied to the new image. In this case, it sets theCMD
instruction of the new image to the value of${command}
. TheCMD
instruction specifies the default command to run when a container is started from the image.${container}
: This is the ID or name of the container from which the new image will be created.${image}:${tag}
: This is the name and tag to be assigned to the newly created image.
In summary, this command creates a new image by making changes to an existing container. It sets the default command to ${command}
in the new image.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.