kill app on port 3000 code example

Example 1: kill app at port

#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)

Example 2: killing a port mac

sudo lsof -i :3000

Example 3: kill process on port 3000 mac

kill $(lsof -ti:3000,3001,8080)

Example 4: killing a port mac

kill -9 <PID>