An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...

Shell accounts give access to a remote system via a shell, like early internet users in the '90s. A shell account offers a ...

PowerShell is extremely powerful and once you get the hang of it, you can see how you can easily do things that using Unix shell is harder to do. Yeah, every row is an object and each column is ...

GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...

Maybe you're married to Microsoft Exchange, but you secretly pine for open-source e-mail tools like SpamAssassin or fetchmail. Or maybe you're using Unix-based applications for some network services, ...