KornShell (ksh)

KornShell (ksh) is a command-line interface and scripting language used in Unix-like operating systems. It allows users to interact with the computer by typing commands, automate tasks through scripts, and manage files or processes efficiently. ksh combines features from earlier shells like the Bourne shell and C shell, offering advanced scripting capabilities, better job control, and improved performance. It is prized for its readability, powerful scripting tools, and compatibility, making it a popular choice for system administrators and developers to automate complex tasks and manage system environments effectively.