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Jun 11, 2025
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Added document for RAKEOPT #639

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13 changes: 13 additions & 0 deletions doc/command_line_usage.rdoc
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Expand Up @@ -153,6 +153,19 @@ Options are:
[<tt>--no-deprecation-warnings</tt> (-X)]
Do not display the deprecation warnings.

== Environment Variables

[<tt>RAKEOPT</tt>]
Command line options can be specified in the <tt>RAKEOPT</tt>
environment variable. These options will be processed as if they
were given on the command line. This is useful for setting default
options that you want to use with every rake invocation.

For example, setting:
export RAKEOPT="-s --trace"

would cause rake to run silently with tracing enabled by default.

In addition, any command line option of the form
<em>VAR</em>=<em>VALUE</em> will be added to the environment hash
<tt>ENV</tt> and may be tested in the Rakefile.