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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)
49 lines
1.1 KiB
Markdown
49 lines
1.1 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-diff - Inspect changes on a container's filesystem
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# SYNOPSIS
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**docker diff**
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[**--help**]
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CONTAINER
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# DESCRIPTION
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Inspect changes on a container's filesystem. You can use the full or
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shortened container ID or the container name set using
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**docker run --name** option.
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# OPTIONS
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**--help**
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Print usage statement
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# EXAMPLES
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Inspect the changes to on a nginx container:
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# docker diff 1fdfd1f54c1b
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C /dev
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C /dev/console
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C /dev/core
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C /dev/stdout
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C /dev/fd
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C /dev/ptmx
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C /dev/stderr
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C /dev/stdin
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C /run
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A /run/nginx.pid
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C /var/lib/nginx/tmp
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A /var/lib/nginx/tmp/client_body
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A /var/lib/nginx/tmp/fastcgi
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A /var/lib/nginx/tmp/proxy
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A /var/lib/nginx/tmp/scgi
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A /var/lib/nginx/tmp/uwsgi
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C /var/log/nginx
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A /var/log/nginx/access.log
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A /var/log/nginx/error.log
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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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