Use this documentation with care! It describes the outdated version 7, which was actively developed around 2014 and is considered dead by the rsyslog team.

This documentation reflects the latest update of the v7-stable branch. It describes the 7.6.8 version, which was never released. As such, it contains some content that does not apply to any released version.

To obtain the doc that properly matches your installed v7 version, obtain the doc set from your distro. Each version of rsyslog contained the version that exactly matches it.

As general advise, it is strongly suggested to upgrade to the current version supported by the rsyslog project. The current version can always be found on the right-hand side info box on the rsyslog web site.

Note that there is only limited rsyslog community support available for the outdated v7 version (officially we do not support it at all, but we usually are able to answer simple questions). If you need to stick with v7, it probably is best to ask your distribution for support.

omstdout: stdout output module (testbench tool)

Module Name:    omstdout

Author:Rainer Gerhards <>

Available Since: 4.1.6


This module writes any messages that are passed to it to stdout. It was developed for the rsyslog test suite. However, there may (limited) other uses exists. Please not that we do not put too much effort into the quality of this module as we do not expect it to be used in real deployments. If you do, please drop us a note so that we can enhance its priority!

Configuration Directives:

  • $ActionOMStdoutArrayInterface [on|**off** This setting instructs omstdout to use the alternate array based method of parameter passing. If used, the values will be output with commas between the values but no other padding bytes. This is a test aid for the alternate calling interface.
  • $ActionOMStdoutEnsureLFEnding [on|off Makes sure that each message is written with a terminating LF. This is needed for the automatted tests. If the message contains a trailing LF, none is added.

Caveats/Known Bugs:

Currently none known.

This documentation is part of the rsyslog project.

Copyright © 2009-2014 by Rainer Gerhards and Adiscon. Released under the GNU GPL version 3 or higher.

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