**Need this to be finished before 10pm PST on Sunday. Source code needs to be well commented. Try and keep the shell as simple and as easy to understand. Please report any limitations to the shell.**
The shell will use a number of system calls. Some commands will be built into the shell itself, which means that those built-in commands only change internal status of the shell program. In this assignment you SHOULD NOT use the corresponding "system" commands to implement the built-in commands.
Deatils inside the attached file.
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request.
3) Exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
Redhat 9 Linux environment.