mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00

Dan Walsh a2b529ead2 --help option and help command should print to stdout not stderr

--help and help are successful commands so output should not go to error.

    QE teams have requested this change, also users doing docker help | less
    or docker run --help | less would expect this to work.

    Usage statement should only be printed when the user asks for it.
    Errors should print error message and then suggest the docker COMMAND --help
    command to see usage information.

    The current behaviour causes the user to have to search for the error message
    and sometimes scrolls right off the screen.  For example a error on a
    "docker run" command is very difficult to diagnose.

    Finally erros should always exit with a non 0 exit code, if the user
    makes a CLI error.

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)

2015-01-06 13:40:14 +01:00

1.2 KiB

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% DOCKER(1) Docker User Manuals % Docker Community % JUNE 2014

NAME

docker-import - Create an empty filesystem image and import the contents of the tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then optionally tag it.

SYNOPSIS

docker import [--help] URL|- [REPOSITORY[:TAG]]

DESCRIPTION

Create a new filesystem image from the contents of a tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then optionally tag it.

OPTIONS

--help Print usage statement

EXAMPLES

Import from a remote location

# docker import http://example.com/exampleimage.tgz example/imagerepo

Import from a local file

Import to docker via pipe and stdin:

# cat exampleimage.tgz | docker import - example/imagelocal

Import from a local file and tag