The initial deathstar ( .*) is greedy, qv.
IOW, there's nothing left for your capture after leading .* matched everything in your string.
Read, instead, about look-aheads or try capturing the first Sanity_001_ and the balance of the string (to a second capture clause), and printing/saving only $2 -- either can help you, but learning about look-aheads (and the general category, of which it's a part, "look arounds") will help you greatly, even in the short term.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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<h5> <h6> <hr /> <i>
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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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