open2

open2 (\*rdr, \*wtr, cmd_with_args)

• Forks a child process to execute the specified command. Takes the following arguments:
  • \*rdr
  • Represents a read filehandle that your program can use to read from the command $cmd's standard output. Can be a FileHandle object or a reference to a typeglob.
  • \*wtr
  • Represents a write filehandle that your program can use to write to the command $cmd's standard input. Can be a FileHandle object or a reference to a typeglob.
  • cmd_with_arguments
  • The command to be executed by the child process, and its arguments. Can be specified two ways:
    
    

    $cmd_with_args $cmd, "arg1", "arg2", ...