How to send "ctrl+c" cmd through on the serial line by the ruby serialport

Question

I send "top" to the device through serailport,then read the top info
After that, I don't known how to stop the "top"!

require 'serialport'
port       = 2
args       ={"baud"=>57600, "data_bits"=>8,"stop_bits"=>1,"parity"=>SerialPort::NONE}
serial_obj = SerialPort.new(port, args)
serial_obj.read_timeout=1000
serial_obj.write("top\n")
print serial_obj.read

score 0 · Answer 1 · answered Sep 23 '15 at 17:19

0

You have to write the ETX character, which is "\x03". You may also be able to use Ruby's "control" escape sequences, such as "\cc" or "\C-c", as referenced here, but I haven't tried this myself.

answered Sep 23 '15 at 17:19

Shotgun Ninja

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both of "serial_obj.write("\C-c\n")" “serial_obj.write("\cc\n")” solve my question! – wuhlcom Sep 24 '15 at 02:13
If these answer your question, you should accept this as the answer. – Shotgun Ninja Sep 29 '15 at 17:25

How to send "ctrl+c" cmd through on the serial line by the ruby serialport

1 Answers1