rshell (Rohan Shell)

This is simple implementation of the UNIX-based shell heavily influenced from:

• build-your-own-x Shell
• Brennan.io - Programming a C Shell

Instructions to run

To execute the program run the following executable in the root directory of the project:

$ ./rshell

Upon commencing, you should see a terminal prompt

Welcome to rshell!
/ >

Implementation Details

The shell process is isolated to the current directory, so you cannot cd out of the project's root directory. To accomplish this, the program maintins a directory node link list where the current node references its parent, so that a cd reverse can retrieve a path. To run a program, the rsh_launch calls fork() and runs execvp(...) in the child process while the parent process waits for it to finish.