Try this one:
((?:(\d{1,2}|[a-fA-F]{1,2}){2})(?::|-*)){6}
Example Usage (extract MAC address):
my $string = 'tu0 1500 <Link> 00-00-f8-05-c8-20';
$string =~ m/^.+
( # Start back reference capture for MAC Address
((?:(\d{1,2}|[a-fA-F]{1,2}){2})(?::|-*)){6}
) # End back reference
$/xms;
print "$1\n" if (defined $1);
NB: This will also work with MAC like:
my $string = 'tu0 1500 <Link> 00:00:f8:05:c8:20';
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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