If you have many daemons running on your server, it can be quite difficult to keep track of them all. inetd and xinetd manage these services centrally and also take care of exchanges with your clients, allowing programs without network code to operate as Internet servers.

Most admins tend to use the shell, Perl,or Python if they need a system administration script. But there is no need for web programmers to learn another language just to script a routine task. PHP gives admins the power to program command-line tools and even complete web interfaces.