PERL Related

sysopen(FILEHANDLE, $name, $flags, $perms) or die "Can't open $name : $!";

find the sysopen param here: http://www.unix.com.ua/orelly/perl/cookbook/ch07_02.htm

CPAN Modules - usage

IO::Socket::INET

Perl resources:

http://www.perlmonks.com/