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  1. or download this
    #!/usr/bin/perl
#prompts for an string to evalute 
...
close($rd);
close($wr);
  2. or download this
    #!/usr/bin/perl
use warnings;
...
waitpid($pid, 1);
# It is important to waitpid on your child process,   
# otherwise zombies could be created.
  3. or download this
    #!/usr/bin/perl
use warnings;
...
waitpid($pid, 1);
# It is important to waitpid on your child process,   
# otherwise zombies could be created.