What is Command language ?
A command language is a language for job control in computing. It is a domain- specific and interpreted language; common examples of a command language are shell or batch programming ... scripting languages, though a command language usually has stronger coupling to the underlying operating system.
Basically,Operating system commands are written in C language.
Question -: "Why Only C lanuage?"
C language because, C became the standard systems programming language in the 70s, and this tradition holds to the present day. The most popular operating systems today are still written in C, with some assembly for some lower level hardware routines and in some cases C++ for some higher layers.
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