Running into the same problem as my last node. I rewrote the entire script hoping for better functionality but it still prints to screen: Your unique ID is.. without the $pw. So somewhere it is being overwritten with an undefined value or it's not ever becoming defined. Any suggestions?

#!/usr/bin/perl

use CGI::Carp 'fatalsToBrowser';
use strict;
use warnings;
use CGI;
my $query = CGI->new;
my $usedpw = "logfile.txt";
my @chars;
print $query->header;

# opening for reading
open(USEDPW, "< $usedpw") or die "poo poo on reading $!";
flock USEDPW, 1;
# Storing the file handle, not a scalar, into an array for full readin
+g
my @used_pw = <USEDPW>;
close(USEDPW);
# remove trailing whitespace
chomp my $used_pw;

while (<USEDPW>)
{
my $pw = @chars[map{rand @chars} (1..17)];
}
unless ($_ ne my $pw) {
print "Your unique ID is: $pw\n";
}

my $pw;
open(USEDPW, "> $usedpw") or die "crap on me for writing $!";
flock USEDPW, 2;
print USEDPW "$pw\n";
close(USEDPW);

[download]

Thanks,

"Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us"

sulfericacid

In reply to Losing or overwritting values by sulfericacid

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