That shell had some resemblance to a modern shell, but wasn’t really set up for scripting. It did have the standard syntax for redirection and piping, though.

Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every ...

Notice how different this output looks than the Korn output shown above. This points to a fundamental difference in the way that associative arrays are implemented in the two scripting languages.

These arrays employ numeric values — 1, 2, 3 and so on — as their indices. Since most scripting and programming languages start indexed arrays with element 0, we have done so in the examples ...

The Korn shell is a sophisticated user interface and high-level programming environment for the Unix operating system, including Linux. The expanded Korn Shell Reference card includes new information ...