I am currently working on a program that establishes TCP and UDP connections between different ports on my computer (thereby simulating a real system). When I kill the main process running, the TCP connections remain open on my computer. So far I have been killing them manually by running netstat -ano | findstr PID :8080 (assuming 8080 was the port), to get the PIDs and then running taskkill //PID $pidnum //F to kill the process. As I am doing this on a few ports I wanted to right a bash script that would do this for me.
To write this script I want to loop through the different ports I am using and save the PIDS in an array and then loop through this array and kill each process. However, I am having difficulty extracting only the PID from the netstat return. The return looks something like this:
Proto Local Address Foreign Address State PID TCP 127.0.0.1:50065 0.0.0.0:0 LISTENING 5384 TCP [::1]:50057 [::]:0 LISTENING 6788 I have tried netstat -ano | findstr "PID :8080" | awk '{print $7}' which should be the PID column but it only returns the column header (PID) but not the actual PID numbers. Any ideas?
Note: I am using the git bash terminal if that makes a difference and as such by default it does not come with commands like lsof.
