webmin/postfix/help/opt_local_command_shell.html
2007-04-12 20:24:50 +00:00

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<header>Shell to use for delivery to external command</header>
<center><tt>local_command_shell</tt></center>
<hr>
This parameter controls what shell will be used for delivery to external
command. By default, external commands are executed directly; commands are
given to <tt>/bin/sh</tt> only when they contain shell meta characters or
shell built-in commands.
<p>
Specify a different shell when you need more control over what
programs can be run from e.g. <tt>.forward</tt> files.
<p>
&quot;sendmail's restricted shell&quot; <tt>smrsh</tt> is what most people will
use (<tt>smrsh</tt> is part of recent sendmail distributions)
<p>
Note: when a shell is specified, it is invoked even when the
command contains no shell built-in commands or meta characters.
<p>
Example: <tt>/some/where/smrsh -c</tt>
<p>
<hr>