search process and kill command line code example

Example 1: kill process cmd

netstat -ano | findstr :3000
taskkill /PID "123" /F

Example 2: find and kill process

Find PID of process to kill with:
ps ax
Then just specify "kill PID" command as for example:
kill 16320
kill -9 16320 	#Force kill in case process is not answering.