Compose a 1250 words assignment on operating systems and security. Needs to be plagiarism free!

  

Compose a 1250 words assignment on operating systems and security. Needs to be plagiarism free! The command interpreter, Shell, provides UNIX users with an interface to the kernel. This Command-Line interpreter (CLI) interprets the commands a user types in and tries to arrange them in order of how they will be executed. It also allows for the users to code an interpretive script and group these together using simple programming constructs such as ‘while’, ‘if’, while, and ‘for’. A shell script is written to and executed as a single command. This piece of work will dwell on writing a simple menu-driven scenario. Information that the program will show include• List of users who are logged in• Present handling directory• Show the content of the ‘etc’ directory. 1.2. Source code/* Ali Baba, SID: 000001, .

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