NAME

       docker-pull - Pull an image or a repository from a registry

SYNOPSIS

       docker pull [-a|--all-tags[=false]] [--help] NAME[:TAG]

DESCRIPTION

       This  command  pulls down an image or a repository from a registry. If there is more than one image for a
       repository (e.g., fedora) then all images for that repository name are pulled down including any tags.

       If  you  do  not  specify  a  REGISTRY_HOST,  the  command  uses  Docker's  public  registry  located  at
       registry-1.docker.io by default.

OPTIONS

       -a, --all-tags=true|false
          Download all tagged images in the repository. The default is false.  --help
         Print usage statement

EXAMPLE

Pull a repository with multiple images

Note that if the image is previously downloaded then the status would be

'Status: Image is up to date for fedora'

              $ sudo docker pull fedora
              Pulling repository fedora
              ad57ef8d78d7: Download complete
              105182bb5e8b: Download complete
              511136ea3c5a: Download complete
              73bd853d2ea5: Download complete

              Status: Downloaded newer image for fedora

              $ sudo docker images
              REPOSITORY   TAG         IMAGE ID        CREATED      VIRTUAL SIZE
              fedora       rawhide     ad57ef8d78d7    5 days ago   359.3 MB
              fedora       20          105182bb5e8b    5 days ago   372.7 MB
              fedora       heisenbug   105182bb5e8b    5 days ago   372.7 MB
              fedora       latest      105182bb5e8b    5 days ago   372.7 MB

Pull an image, manually specifying path to Docker's public registry and tag

Note that if the image is previously downloaded then the status would be

'Status: Image is up to date for registry.hub.docker.com/fedora:20'

              $ sudo docker pull registry.hub.docker.com/fedora:20
              Pulling repository fedora
              3f2fed40e4b0: Download complete
              511136ea3c5a: Download complete
              fd241224e9cf: Download complete

              Status: Downloaded newer image for registry.hub.docker.com/fedora:20

              $ sudo docker images
              REPOSITORY   TAG         IMAGE ID        CREATED      VIRTUAL SIZE
              fedora       20          3f2fed40e4b0    4 days ago   372.7 MB

HISTORY

       April  2014,  Originally  compiled by William Henry (whenry at redhat dot com) based on docker.com source
       material and internal work.  June 2014, updated by Sven Dowideit ⟨SvenDowideit@home.org.au⟩ August  2014,
       updated   by   Sven   Dowideit   ⟨SvenDowideit@home.org.au⟩   April   2015,   updated   by   John  Willis
       ⟨john.willis@docker.com⟩ April 2015, updated by Mary Anthony for v2 ⟨mary@docker.com⟩