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Man page - mistaken instructions?

From: Fernando Basso
Subject: Man page - mistaken instructions?
Date: Tue, 04 Jan 2011 13:45:06 -0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101230 Lanikai/3.1.7

I'm Fernando Basso from Brazil, and I run Arch Linux.

$ grep --version
grep (GNU grep) 2.7

man help says:

    {,m}   The preceding item is matched at most m times.

But that does not work:

    $ echo 'users' | grep 'users\{,1\}'
    grep: malformed repeat count

But this work:

    $ echo 'users' | grep 'users\{0,1\}'

Shouldn't the man page say:

    "{0,m}    The preceding item is matched at most m times." ?

Thanks for your attention.


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