usage:
  rabbit  [-help]
      [-version]
      [-list]
      [-codes]
      [-descriptions]
      [-processor]
      [-Input]
      [-Stats [0|1|2] ]
      [-group [0|1|2|3|4|5|6|7|all] ]
      [-number    replication]
      [--events   m,n]   [-Label text]
      [--duration m,n]
      [--user     m,n]
      [--os       m,n]
      [-mhz       Mcycles_per_sec]
      [-sample    samples_per_sec]
      [-rotate    samples_per_rotate]
      [-flush     samples_per_flush]
      [-input     input_file]
      [-output    output_directory]
      [--]  command [arg ...]

  Intel Pentium/MMX, 82 events, 2 counters