I want to send commands from a script to twinkle (the VOIP software). I thought I could do this with a named pipe so I have created one
If I start twinkle and pipe tail from the named pipe to it I can send command by writing to the named pipe
tail -f phonecmd | twinkle -c ... echo answer > phonecmd
But what I really want is to send commands using a python scripts that monitors the GPIO pins in a raspberry pi, but I cant figure out how to do it.
will print "answer" or "bye" depending on if a GPIO pin on the raspberry pi is changed.
python gpio.py | phonecmd
This gives me an error as phonecmd is not a command (its a named pipe).
python gpio.py > phonecmd
This only sort of works. The redirect is buffered, so everything is written to the phonecmd pipe only once the python process is closed.
Is there a way to have the redirect or pipe "live"?