system( "/usr/bin/perl /full/path/to/the/script.plx" )

##</code><code>##

#!/usr/bin/perl -wT

$|++;
use strict;
use CGI qw(:standard); # important shortcuts
use Fcntl qw(:flock);  # imports LOCK_EX, LOCK_SH, LOCK_NB

my $timestamp = localtime;
# this should be as suggested above "/usr/bin/perl /path/to/Kreports.plx"
my $script_to_call = "./Kreports.plx";  
$TITLE = "Kim's Report Generator";
$LOGFILE = "/usr/tmp/KreportLog"; 

print header,start_html($TITLE),h1($TITLE);

if ( param('name') ) {
    # if we have a name we must have been called from our form
    if ( ( param('name') eq 'Kim' ) and ( param('passwrd') eq 'Knecht' ) ) {
       &runReports(); 
    } 
    else {
        print "Unauthorized!\n";
    }
}
else {
    # no name param so show form
    print hr, start_form;  # hr() emits a horizontal rule: <HR>
    print p( $timestamp );
    print p( "User ID:", textfield( -NAME => "name" ) );
    print p( "Passwrd:", password_field( -NAME => "passwrd"));
    print p( submit( "send" ), reset( "clear" ) );
    print hr;
    print end_form;
}

##### Subs #####

sub bail {
    my $error = "@_";
    print h1("Unexpected Error"), p($error), end_html;
}

sub runReports {
    print "Generating Reports\n";
    my $exit_val = system($script_to_call);
    if ( $exit_val ) {
       print "<p>System call failed with an exit value $exit_val\n";
       print "<p>Let's see what a backtic exec shows us\n";
       print '<pre>', `$script_to_call`, '</pre>';
    }
}