You probably want to do something like
my $var = `command`;
Notice that the single quotes were replaces by backticks. There are certain problems with using backticks, but it's usually OK to use them to run a simple and safe command.
Also, your current code will only capture v09.11. If you want to capture v09.11-e020, use this:
my ($exp) = $var =~ m/(v\d{2}\.\d{2}-[a-z]\d{3})/;
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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>
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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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