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  1. or download this
    #!/usr/bin/env perl

...
__END__
  2. or download this
    karls-mac-mini:Desktop karl$ perlcritic -1 ipc.pl 
Code is not tidy at line 1, column 1.  See page 33 of PBP.  (Severity:
+ 1)
...
Useless interpolation of literal string at line 33, column 22.  See pa
+ge 51 of PBP.  (Severity: 1)
Builtin function called with parentheses at line 35, column 1.  See pa
+ge 13 of PBP.  (Severity: 1)
Useless interpolation of literal string at line 35, column 22.  See pa
+ge 51 of PBP.  (Severity: 1)