Korn shell

Here’s another Unix shell based on the Bourne shell but it also includes features from the C shell. Thus, Korn shell is a combination of the two most popular shells and it’s also the easiest one to use, which is why newcomers tend to use it, especially in commercial environments.

KornShell (ksh) is a Unix shell which was developed by David Korn at Bell Labs in the early 1980s and announced at USENIX on July 14, 1983. The initial development was based on Bourne shell source code.

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