terminate something running on port 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: kill port
kill -9 $(lsof -t -i tcp:8080)
Example 3: kill port
sudo kill -9 $(sudo lsof -t -i:8080)