Alternative to docker images purge to remove dangling images.

gistfile1.txt

# remove docker images by line in text file
# alternative to `docker images purge`
!/bin/bash

images_file=dangling_images.txt

list_dangling_images () {
  docker images --filter dangling=true | while read IMAGE_ID; do
    >> $images_file
  done

}
  
remove_dangling_images () {
  while IFS= read -r line
  do
    # display $line or do somthing with $line
    docker rmi -f "$line"
  done < $images_file
}

main () {
  list_dangling_images
  remove_dangling_images
}

main