If $ENV{HOME} is not set, it won't be set in the shell either.
Most likely, your login environment is not set up because your script is running as the CGI user, or if it is running as your user, the login / .profile scripts have not been run.
See Get default login environment and the replies for how to set up the environment from a script.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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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
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Want more info? How to link
or How to display code and escape characters
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