In this snippet, you actually download the whole file each time you (cron) run(s) the script.
Not true.
From LWP::UserAgent, that LWP::Simple uses under the hood:
$ua->mirror( $url, $filename )
This method will get the document identified by $url and store it in file
called $filename. If the file already exists, then the request will contain
an "If-Modified-Since" header matching the modification time of the file.
If the document on the server has not changed since this time, then nothing
happens. If the document has been updated, it will be downloaded again.
The modification time of the file will be forced to match that of the
server.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
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<h5> <h6> <hr /> <i>
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<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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