Lots of you may have encountered some error message stating that the port has been taken by another program while trying to start a program on Linux. And you would want to know which program takes the port you want to use. This post will provide some feasible ways to check out which program is taking a specific port.lsof -i:[port]lsof is the command to list open files on Linux. And if you know more about Linux you should get to know everything on Linux is a file even including network connection. Hence you can use lsof to list the network programs which are running.The -i option will...