linux sudo force kill all processen using specific port code example
Example 1: kill process at a port ubuntu
sudo kill -9 $(sudo lsof -t -i:9001)
Example 2: stop a process running on a port ubuntu
sudo kill -9 `sudo lsof -t -i:9001`
sudo kill -9 $(sudo lsof -t -i:9001)
sudo kill -9 `sudo lsof -t -i:9001`