the handler, in which case Perl will try to discard the signal or do the
default thing.
-On most UNIX platforms, the C<CHLD> (sometimes also known as C<CLD>) signal
+On most Unix platforms, the C<CHLD> (sometimes also known as C<CLD>) signal
has special behavior with respect to a value of C<'IGNORE'>.
Setting C<$SIG{CHLD}> to C<'IGNORE'> on such a platform has the effect of
not creating zombie processes when the parent process fails to C<wait()>
While this is true on the surface, it's much more efficient to process the
file one line or record at a time because then you don't have to read the
-whole thing into memory at once. It also gives you finer control of the
+whole thing into memory at once. It also gives you finer control of the
whole process, letting you to kill off the child process early if you'd
like.
superuser.) In our sample, we'll use port 9000, but you can use
any port that's not currently in use on your system. If you try
to use one already in used, you'll get an "Address already in use"
-message. Under Unix, the C<netstat -a> command will show
+message. Under Unix, the C<netstat -a> command will show
which services current have servers.
=item Listen