kill by PID linux code example
Example 1: kill a process with pid
kill -9 PID
Example 2: kill pid
Find PID of process to kill with:
ps ax
Then just specify "kill PID" command as for example:
kill 16320
kill -9 16320
Example 3: kill pid
lsof -i:3000 // Change 3000 to whatever your port is!
sudo kill 9 <PID> // Change <PID> to the Pid number the above command returns
Example 4: kill process from pid
kill SIGNAL PID
kill -9 3827
Example 5: how to kill a process in linux
kill -KILL PIDnumber ... for example, kill -KILL 12345