Application Command-line Interfaces
Application programs (as opposed to operating systems) may also have command line interfaces.
An application program may support none, any, or all of these three major types of command line interface mechanisms:
- Parameters: Most operating systems support a means to pass additional information to a program when it is launched. When a program is launched from an OS command line shell, additional text provided along with the program name is passed to the launched program.
- Interactive command line sessions: After launch, a program may provide an operator with an independent means to enter commands in the form of text.
- Through OS inter-process communication: Most operating systems support means of inter-process communication (for example; standard streams or named pipes). Command lines from client processes may be redirected to a CLI program by one of these methods.
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