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docker:tldr:39f57

docker: Assign a tag to a specific image.

docker

$ docker tag ${image}:${current_tag} ${image}:${new_tag}

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This command is used in Docker to create a new tag for an existing image.

Here's the breakdown of the command:

docker tag is the command itself, used to create a new tag for a Docker image.
${image}:${current_tag} is the original image and its tag. The ${image} is a placeholder for the image name, which you would replace with the actual name of the image you want to tag. ${current_tag} is also a placeholder for the current tag of the image.
${image}:${new_tag} is the new tag that you want to assign to the image. Similarly, ${image} is the placeholder for the image name, and ${new_tag} is the placeholder for the new tag you want to set.

In summary, the command takes an existing Docker image with a current tag and creates a new tag for it, resulting in two tags associated with the same 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.

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