If you are using CGI.pm, then there is a way to accept a query string if using a POST. You will need to uncomment a line. Its line 448 in version 2.752.

# Some people want to have their cake and eat it too!
# Uncomment this line to have the contents of the query string
# APPENDED to the POST data.
# $query_string .= (length($query_string) ? '&' : '') . $ENV{'QUERY_ST
+RING'} if defined $ENV{'QUERY_STRING'};
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This will give you access to the CGI params, but if you just want the whole string in $ENV{QUERY_STRING}, then you need to put it in your form tag.

<FORM method=POST action="test.cgi?$ENV{QUERY_STRING}">
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Then again you could just do something like this.

<INPUT type="hidden" name="query_string" value="$ENV{QUERY_STRING}">
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Then access it in the next cgi like this

my $query_string = $cgi->param('query_string');
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