nc in a Debian environment:
# dpkg -l | grep netcat ii netcat-traditional 1.10-41+b1 # cat /etc/debian_version 9.4
Its help page describe the behavior of the
-w secs timeout for connects and final net reads
So it seems it's accept seconds only (as integer). I need to reduce this timeout because I have to poll a remote device twice per second:
echo -n read_input | nc -w 1 192.168.1.185 8800
this command is sent by an application. I can only set the console command to be executed.
Of course, with a timeout of 1 second I can barely poll the device about 1 time every two seconds (to avoid to open a new socket when the previous is not closed yet).
Do you confirm there's no way to achieve this? So, is there a way to have a timeout < 1 second with
For my own curiosity: why a network timeout should be in seconds?