env REQUEST_METHOD=GET DATA_SOURCE=cmdline QUERY_STRING=DBNAME=mydatabase+SF=dbfield+SV="search_string"+HEAD=none+TAIL=none+TEMPLATE_DIR=templates/path/+CONTENT_TYPE=none /home/evan/test.pl


##</code><code>##

use CGI;
use Data::Dumper;

my $q = new CGI( $ENV{QUERY_STRING} );
print Dumper( $q->param('DBNAME') );

# this outputs:
$VAR1 = 'mydatabase SF=dbfield SV="search_string" HEAD=none TAIL=none TEMPLATE_DIR=templates/path/ CONTENT_TYPE=none';