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Date: Thu, 07 Dec 2017 10:26:19 +0000
From: Frank Leonhardt <frank2@fjl.co.uk>
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Subject: Re: grep problem
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On 07/12/2017 01:19, RW via freebsd-questions wrote:
> Never mind, the shell handles the quotes, so grep sees -b as an option
> rather than a pattern.

:-)

To find these things out the easy way, stick "echo" in front of the 
line, immediately a quoting problem is suspected.