Here's what I use in my scripts. Say you have a text file named "config.txt" that looks like this:

# This is my configuration file
variable1=111
variable2=222
[download]

I put this sub into my script to read that data back in:

sub GetSetting
{
my ($cfg_value,$cfg_filename,$cfg_default)=@_;
open(CFGFILE,"<$cfg_filename") or die "Can't open configuration file $
+cfg_filename.";
my @cf=<CFGFILE>;
foreach $cfg_line (@cf)
{
if (index($cfg_line,"#")==0) { next; } # Lines starting with a hash ma
+rk are comments
my @ln=split("=",$cfg_line);
if ($ln[0] =~ /$cfg_value/i) {
chomp $ln[1];
return $ln[1];
}
}
close CFGFILE;
return $cfg_default; # Return default if we can't find the value 
}
[download]

You set the default value when you call the sub. To read the setting back in, just do like so:

my $setting = GetSetting('variable1','config.txt','111');

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