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Usage: perldoc [-h] [-V] [-r] [-i] [-v] [-t] [-u] [-m] [-n nroffer_pro
+gram] [-l] [-T] [-d output_filename] [-o output_format] [-M Formatter
+ModuleNameToUse] [-w formatter_option:option_value] [-F] [-X] PageNam
+e|ModuleName|ProgramName
       perldoc -f PerlFunc
...

The -h option prints more help.  Also try "perldoc perldoc" to get
acquainted with the system.                        [Perldoc v3.13]

       do BLOCK
               Not really a function.  Returns the value of the
...
                           warn "couldn't run $file"       unless $ret
+urn;
                       }
                   }