Explaining the program's purpose from a user's perspective.
Building servers and clients using sockets and protocols. understanding unix linux programming molay pdf
By the time you finish the final chapter (building a simple web server with sockets), you will no longer be a user of Unix/Linux. You will be someone who understands how to program the system from the inside out. And that understanding is the foundation of a true systems programmer. Explaining the program's purpose from a user's perspective