Node Manager

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$1.$ Overview:

In this project, you will write a C program to implement a basic shell that reinforces

programming fundamentals regarding linked lists, string functions, bitwise operators, and working with

multiple source files.

$2.$ Premise:

A shell is an interactive command line interpreter that runs programs on behalf of the user. On

Unix based systems, the default shell is the Bourne Again shell $($bash$).$ The shell repeatedly prints a

prompt as it waits for command line input on standard input $($stdin$).$ Afterward, it carries out the action

as indicated by the contents of the command line input. The shell will serve as the interface for our

Node Manager system.

The command line input is simply a sequence of ASCII characters delimited by any number of

whitespace characters. The first word in the command line input will be the name of a built$-$in

command. The remaining inputs will be command line arguments.

Your task will be to implement a simple shell program.

$3.$ Provided Handout:

A handout has been provided for you on blackboard which contains the following structure:

p$3\_$handout

$$src$/$: this directory contains source files

$$nodemngr$.$c: the only file which you will be modifying

$$inc$/$: this directory contains header files

$$listnode$.$h: contains a self$-$referential structure used in the project

$$exec$.$h: contains a function prototype of code in exec.c

$$obj$/$: this directory contains object files

$$exec$.$o: object file that is linked in during compilation

$$inputs$/$ this directory contains various test cases

$$ data$/$: this directory contains various test files used by dri