Docker – Shell Script to Remove Docker Images

Following script could help remove all of the docker images starting with a specific prefix. Save the script in a file namely, rmImages.sh. Change the permission using the command such as “chmod u+x rmImages.sh”. Execute the script using the command such as ./rmImages.sh. And, that is it. it would help you delete all the images starting with a specific prefix.

function removeUnwantedImages() {
  DOCKER_IMAGE_IDS=$(sudo docker images | grep "$imagePrefix" | awk '{print $3}') 
  if [ -z "$DOCKER_IMAGE_IDS" -o "$DOCKER_IMAGE_IDS" == " " ]; then
    echo "---- No images available for deletion ----"
  else
    sudo docker rmi -f $DOCKER_IMAGE_IDS
  fi
}

read -p "Delete images whose prefix is: " imagePrefix
removeUnwantedImages