Use the watch command to let you know when a task has been completed or a command has been executed. It's useful for many ad-hoc system administration tasks where you need to…

The find command is a great tool for searching through your system, but it's also a really useful front-end for the powerful Parallel command. There are many reasons to learn…

With conio programming, you can create various practical and exciting applications. The OpenWatcom conio.h and graph.h functions give you the flexibility to print text on…

This two-page cheat sheet provides gentle reminders on the syntax and structure of getopt() and getopt_long(). One page demonstrates short options, and the other side…

JavaScript is a loosely typed and dynamic scripting language developed for the Internet and a core technology of the World Wide Web. It is a surprisingly multipurpose language…