ubuntu port already in use code example

Example 1: kill port ubuntu

sudo kill -9 `sudo lsof -t -i:3002`

Example 2: ubuntu check process on port

sudo lsof -i:22

Example 3: ubuntu stop process on port

sudo kill -9 `sudo lsof -t -i:{PORT_NUMBER}`

Example 4: kill a port in ubuntu

kill -9 $(sudo lsof -t -i:'portName')
//Ex. if portname is 3000
//then we will execute "kill -9 $(sudo lsof -t -i:3000)"