Answers for "check any process running on port in ubuntu"

ubuntu check process on port

sudo lsof -i:22

ubuntu get process on port

lsof -i -P -n

list which process is running on specific port ubuntu

sudo netstat -ltnp | grep -w ':80' 
#port_number: 80
#output: tcp6       0      0 :::80                   :::*                    LISTEN      1907/nginx: master