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 ...

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, ...

Bash is the basic shell of UNIX, a language that is used on many platforms: from different web hosting servers to modems, toys, etc. If you are a Windows user, you need not fear ShellShock ...

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 ...

Ever wondered why programming in Bash is so difficult? Bash employs the same constructs as traditional programming languages; however, under the hood, the logic is rather different. The Bourne-Again ...

When the Windows 10 Anniversary Update was announced, there was one feature that got me excited: support for the Linux Bash shell. I grew up using Unix shell commands and was always frustrated by the ...

One particular frustration with the UNIX shell is the inability to easily schedule multiple, concurrent tasks that fully utilize CPU cores presented on modern systems. The example of focus in this ...

One of the most convenient ways to manipulate information in scripts is to store it in an array. Arrays facilitate looping through lists of related values, keeping track of an ever changing number of ...