What's being suggested is that you maintain a private build of Perl and all your Perl modules. Your applications' shebang lines would point at a different pathname (#!/usr/local/bin/perl, for example) and the perl on /usr/local/bin would be the perl you compiled and installed yourself. That perl would look for Perl modules on a completely different set of paths where it would find your privately maintained modules. The CPAN is Perl's code repository. When you update or install new modules using the cpan command or perl -MCPAN -e shell you're accessing this repository.
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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>
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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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