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#./prefork.pl &
# ps -ef | grep prefork.pl
...
#ps -ef | grep prefork
root     22627     1  0 15:34 pts/3  ./prefork.pl
root     22628     1  0 15:34 pts/3  ./prefork.pl

=for nobody
sub REAPER {                    # takes care of dead children
...
#$SIG{CHLD} = \&REAPER;
#$SIG{INT}  = \&HUNTSMAN;

#!/usr/bin/perl
# preforker - server who forks first
...
    }
}