linux fedora how to kill proces 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: kill port

:8080.
C:\Users\psmith>netstat -ano|findstr "PID :8080"
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:8081 0.0.0.0:0 LISTENING 18264

taskkill /pid 18264 /f