OS Assignment 2 - Shell

Written by Divyesh Jain

To run the shell, enter the following commands:

1) make
2) ./shell

MODULES:

1. shell - This contains the driver program for the shell.

2. parser - This consists of the read function and parser function used by the shell.

3. relative_path - This converts the home directory to a '~'.

4. built_in - Implements built in the commands cd, echo, pwd and handles execution of commands.

5. ls - This implements ls command along with the flags -a and -l.

6. pinfo - Implements pinfo command.

7. process_launch - Implements regular shell functions using execvp.

8. clock_command - Implements clock -t command (bonus).