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Date: Mon, 17 Oct 2011 19:09:43 -0200
From: "Daniel Serodio (lists)" <daniel.lists@mandic.com.br>
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Subject: What's wrong with this expression?
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I'm trying to troubleshoot a script that works with bash but fails with 
zsh, and it uses the "regex match" operator. What's wrong with this 
expression?

     [[ "foo" ~= "x" ]] && echo true

Fails with "zsh: condition expected: ~="

Thanks in advance,
Daniel Serodio