Dear Masters,
Here is a simple executable cgi script that simply:

• take the input text and
• print them into a file at specific directory with a "system/exec" call,
  of a perl script called prn_to_file.pl.

But why the exec/system doesn't do the job? Namely, the file is not created.

The permission in the "../results" directory also already cleared (please see below).

#!/usr/bin/perl -w

# This file name is: gettext_n_print.cgi

use CGI qw/:standard :html3/;
use CGI::Carp qw( fatalsToBrowser );

print header,
    start_html('Deploying Exec/System with CGI'),
    h1('Testing System/Exec function with CGI');

    print_form()    unless param;
    print_results_to_file() if param;
    print end_html;

sub print_form {
    print start_multipart_form(),
        strong('Your text: '),    
            textfield( -name => 'user_text' ), br, br

       submit(-label=>'Submit'), 
       end_form;
}

sub print_results_to_file {

    my $param1 = param('user_text');

    print "This text _should_ be printed to the file : ",br,br;
    print $param1,br;


    # But this system/exec call doesn't do the job? Why?

    system("perl prn_to_file.pl $param1 > ../results/output.txt");

    # And these two  also don't work
    # system("echo $param1 > ../results/output.txt");
    # exec("perl prn_to_file.pl $param1 > ../results/output.txt");

    # In actual practice I have to make several systems call for  
    # a more complex perl script than just printing text like taking
    # output.txt as arg of another script like this:

    # system("perl other_code.pl output.txt > ../results/final.out2");

}
[download]

And prn_to_file.pl script is just simple like this:

#!/usr/bin/perl -w
use strict;
my $text = $ARGV[0];

print "THIS IS YOUR INPUT TEXT: $text\n";
[download]

This cgi script resides in cgi-bin. The overall permission looks like this:

under "public_html/somedir/" I have:

drwxrwxr-x  2 myname  myname 4096 Jul 19 14:29 cgi-bin
drwxrwxr-x  2 myname  myname 4096 Jul 19 14:29 results

and under "cgi-bin/" I have:

-rwxr-xr-x  1 myname myname 1506 Jul 19 14:29 gettext_n_print.cgi
-rwxr-xr-x  1 myname myname  292 Jul 19 13:56 prn_to_file.pl
[download]

I've supersearched the topic and also tried to follow relevant suggestion there (like permission setting), but still I can't resolve the problem.

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