how to stop all running ports from bash script 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

lsof -i:8080

Example 3: kill port

kill -9 $(lsof -t -i:8080)

Example 4: kill linux port

sudo fuser -k 1883/tcp