title: Sending bytes to serial port from UNIX command line?
body: <p>i would like to send a stream of bytes to a serial port using the command line.  is this possible?  my serial port is at <em>/dev/cu.usbserial-A700dYoR</em> on my Mac.  for example, if i wanted to send the integer 50 or the string "data" to that serial port, how can i do that?</p>
  
  <p>my knowledge of UNIX is very limited.  </p>