port list linux code example

Example 1: linux how to see ports in use

sudo netstat -tulpn | grep LISTEN

sudo lsof -i:22 # see a specific port such as 22

Example 2: netstat command in linux to check specific port

netstat -tulpn | grep :80

Example 3: how to get list port linux cmd

lsof -i -P -n | grep LISTEN