ubuntu running processes with port code example

Example 1: linux query port use by pid

$ sudo netstat -nlp | grep :80
tcp  0  0  0.0.0.0:80  0.0.0.0:*  LISTEN  125004/nginx

Example 2: ubuntu check process on port

sudo lsof -i:22

Example 3: find process id of port ubuntu

$ sudo netstat -ltnp | grep -w ':80'

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