The cgi script folder is normally not writeable to by the web server for security. Try adding 

use CGI::Carp 'fatalsToBrowser'; # use only while debugging

[download]
to your script to see what is causing the internal error

or try this SSCCE which writes to /tmp

#!/usr/bin/perl
use strict;
use warnings;
use CGI qw/:standard/;
use CGI::Carp 'fatalsToBrowser'; # use only while debugging
use Cwd;

my $cwd = getcwd(); # current working directory

my $event      = param('event') || 1;
my $newCOMMENT = param('newCOMMENT') || 'test comment';
my $commentUID = time();
my $path       = '/tmp';
my $fileA      = "$path/$event.txt";
my $fileB      = "$path/$commentUID.txt";

if ($newCOMMENT ne "") {
  open AFH, '>>', $fileA 
    or die "Could not open $fileA : $!";
  print AFH "$commentUID\n";
  close AFH;
    
  open BFH, '>>', $fileB 
    or die "Could not open $fileB : $!";
  print BFH "$newCOMMENT\n";
  close BFH ;
}

print header,start_html;
print pre("
cwd        : $cwd
event      : [$event]
newCOMMENT : [$newCOMMENT]
commentUID : $commentUID");
print end_html;

[download]
poj

In reply to Re: open file using variable passed by form by poj
in thread open file using variable passed by form by michael.kitchen

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