Docker Useful Scrips

You can find some useful Docker scripts below.

Image Copy (Tag)

You can copy an image from one Docker Hub account to another using the following script.

You need to change the OLD_IMAGE and NEW_IMAGE variables accordingly.

copy_image.sh

#!/bin/bash

# Old image (source)
OLD_IMAGE="olduser/oldrepo:version"

# New image (destination)
NEW_IMAGE="newuser/newrepo:version"

# 1. Pull the old image
docker pull $OLD_IMAGE

# 2. Tag it with the new name
docker tag $OLD_IMAGE $NEW_IMAGE

# 3. Log in to Docker Hub (will ask for password unless already logged in)
#echo "Please log in to your Docker account:"
#docker login -u newuser

# 4. Push the new image
docker push $NEW_IMAGE

echo "✅ Done! $NEW_IMAGE is now available under your new account."

Usage:

chmod +x copy_image.sh
./copy_image.sh