in reply to Re^5: Regular expression match in code
in thread Regular expression match in code

Surprise surprise, 
 
print Dumper \@allServers;
print Dumper \@bigArray;

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prints nothing; just  $VAR1 = []  print Dumper $var; correctly prints the IP present in the incoming SNMP trap. So my reading from file part is going wrong?! How? Its fairly straight forward and I have even tested it by writing  exit(0); after the read from config (populates @allServers) and write into @bigArray (<ip,server>) format. Help... :(

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Re^7: Regular expression match in code
by moritz (Cardinal) on May 12, 2010 at 10:08 UTC
    The easist explanation is that your open call fails. Since you don't check the return value, it does that silently. 
    open my $fh, '<', $configFile
   or die "Can't open '$configFile' for reading: $!";

my @allServers;

while (<$fh>) {
    push (@allServers, $_) if /^\w/;
}
close $fh or warn "Error while closing file: $!";

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