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

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

NAME

docker-stop - Stop a running container by sending SIGTERM and then SIGKILL after a grace period

SYNOPSIS

docker stop [--help] [-t|--time[=10]] CONTAINER [CONTAINER...]

DESCRIPTION

Stop a running container (Send SIGTERM, and then SIGKILL after grace period)

OPTIONS

--help Print usage statement

-t, --time=10 Number of seconds to wait for the container to stop before killing it. Default is 10 seconds.

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

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