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<samba:parameter name="message command"
context="G"
type="string"
substitution="1"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>This specifies what command to run when the
server receives a WinPopup style message.</para>
<para>This would normally be a command that would
deliver the message somehow. How this is to be done is
up to your imagination.</para>
<para>An example is:
<programlisting>
<command moreinfo="none">message command = csh -c 'xedit %s;rm %s' &</command>
</programlisting>
</para>
<para>This delivers the message using <command moreinfo="none">xedit</command>, then
removes it afterwards. <emphasis>NOTE THAT IT IS VERY IMPORTANT
THAT THIS COMMAND RETURN IMMEDIATELY</emphasis>. That's why I
have the '&' on the end. If it doesn't return immediately then
your PCs may freeze when sending messages (they should recover
after 30 seconds, hopefully).</para>
<para>All messages are delivered as the global guest user.
The command takes the standard substitutions, although <parameter moreinfo="none">
%u</parameter> won't work (<parameter moreinfo="none">%U</parameter> may be better
in this case).</para>
<para>Apart from the standard substitutions, some additional
ones apply. In particular:</para>
<itemizedlist>
<listitem>
<para><parameter moreinfo="none">%s</parameter> = the filename containing
the message.</para>
</listitem>
<listitem>
<para><parameter moreinfo="none">%t</parameter> = the destination that
the message was sent to (probably the server name).</para>
</listitem>
<listitem>
<para><parameter moreinfo="none">%f</parameter> = who the message
is from.</para>
</listitem>
</itemizedlist>
<para>You could make this command send mail, or whatever else
takes your fancy. Please let us know of any really interesting
ideas you have.</para>
<para>
Here's a way of sending the messages as mail to root:
<programlisting>
<command moreinfo="none">message command = /bin/mail -s 'message from %f on %m' root < %s; rm %s</command>
</programlisting>
</para>
<para>If you don't have a message command then the message
won't be delivered and Samba will tell the sender there was
an error. Unfortunately WfWg totally ignores the error code
and carries on regardless, saying that the message was delivered.
</para>
<para>
If you want to silently delete it then try:
<programlisting>
<command moreinfo="none">message command = rm %s</command>
</programlisting>
</para>
</description>
<value type="default"></value>
<value type="example">csh -c 'xedit %s; rm %s' &</value>
</samba:parameter>
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