Starting shell command with name of current mailbox as parameter

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Subject: Starting shell command with name of current mailbox as parameter
From: Nathan Huesken <mutt@xxxxxxxxxxxxxxx>
Date: Tue, 20 Jan 2009 17:24:39 +0100
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Hi,

Can I somehow write a macro, which starts a shell command with the currently 
selected Mailbox as argument?

Thanks!
Nathan

Follow-Ups:
- Re: Starting shell command with name of current mailbox as
  - From: Noah Sheppard