You don't. Either use LWP::UserAgent, or the POST (or lwp-request) utility that comes with LWP. As the description of LWP::Simple says: 
       This module is meant for people who want a simplified view
       of the libwww-perl library.  It should also be suitable
       for one-liners.  If you need more control or access to the
       header fields in the requests sent and responses received,
       then you should use the full object-oriented interface
       provided by the "LWP::UserAgent" module.

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Abigail

In reply to Re: POST on LWP::Simple by Abigail-II
in thread POST on LWP::Simple by Gorby

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