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--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)
82 lines
2.6 KiB
Markdown
82 lines
2.6 KiB
Markdown
% DOCKER(1) Docker User Manuals
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% Docker Community
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% JUNE 2014
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# NAME
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docker-ps - List containers
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# SYNOPSIS
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**docker ps**
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[**-a**|**--all**[=*false*]]
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[**--before**[=*BEFORE*]]
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[**--help**]
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[**-f**|**--filter**[=*[]*]]
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[**-l**|**--latest**[=*false*]]
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[**-n**[=*-1*]]
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[**--no-trunc**[=*false*]]
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[**-q**|**--quiet**[=*false*]]
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[**-s**|**--size**[=*false*]]
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[**--since**[=*SINCE*]]
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# DESCRIPTION
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List the containers in the local repository. By default this show only
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the running containers.
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# OPTIONS
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**-a**, **--all**=*true*|*false*
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Show all containers. Only running containers are shown by default. The default is *false*.
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**--before**=""
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Show only container created before Id or Name, include non-running ones.
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**--help**
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Print usage statement
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**-f**, **--filter**=[]
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Provide filter values. Valid filters:
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exited=<int> - containers with exit code of <int>
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status=(restarting|running|paused|exited)
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**-l**, **--latest**=*true*|*false*
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Show only the latest created container, include non-running ones. The default is *false*.
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**-n**=-1
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Show n last created containers, include non-running ones.
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**--no-trunc**=*true*|*false*
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Don't truncate output. The default is *false*.
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**-q**, **--quiet**=*true*|*false*
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Only display numeric IDs. The default is *false*.
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**-s**, **--size**=*true*|*false*
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Display total file sizes. The default is *false*.
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**--since**=""
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Show only containers created since Id or Name, include non-running ones.
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# EXAMPLES
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# Display all containers, including non-running
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# docker ps -a
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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a87ecb4f327c fedora:20 /bin/sh -c #(nop) MA 20 minutes ago Exit 0 desperate_brattain
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01946d9d34d8 vpavlin/rhel7:latest /bin/sh -c #(nop) MA 33 minutes ago Exit 0 thirsty_bell
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c1d3b0166030 acffc0358b9e /bin/sh -c yum -y up 2 weeks ago Exit 1 determined_torvalds
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41d50ecd2f57 fedora:20 /bin/sh -c #(nop) MA 2 weeks ago Exit 0 drunk_pike
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# Display only IDs of all containers, including non-running
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# docker ps -a -q
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a87ecb4f327c
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01946d9d34d8
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c1d3b0166030
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41d50ecd2f57
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# HISTORY
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April 2014, Originally compiled by William Henry (whenry at redhat dot com)
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based on docker.com source material and internal work.
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June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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August 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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November 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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