//Open command prompt and run the following commands
C:Usersusername>netstat -o -n -a | findstr 0.0:3000
TCP 0.0.0.0:3000 0.0.0.0:0 LISTENING 3116
C:Usersusername>taskkill /F /PID 3116
//here 3116 is the process ID
netstat -ano | findstr :<PORT>
(Replace <PORT> with the port number you want, but keep the colon)
Step 2:
Next, run the following command:
taskkill /PID <PID> /F
## Get PID Id on port:
netstat -ano | findstr <Port Number>
## Kill task on PID:
taskkill /F /PID <Process Id>
## Process Id is the last numbers at the end of a line.
# To list any process listening to the port 8080:
lsof -i:8080
# To kill any process listening to the port 8080:
kill $(lsof -t -i:8080)
# or more violently:
kill -9 $(lsof -t -i:8080)
# (-9 corresponds to the SIGKILL - terminate immediately/hard kill signal: see List of Kill Signals and What is the purpose of the -9 option in the kill command?. If no signal is specified to kill, the TERM signal a.k.a. -15 or soft kill is sent, which sometimes isn't enough to kill a process.).
#list process running on specified port (here 80, change to your port)
sudo lsof -i:80
#kill process on specified port (here 80, change to your port)
sudo kill $(sudo lsof -t -i:80)