C- Shell

To run: make clean make ./shell

Files:

1. main.c -> Contains the main loop of the Shell.
2. launch.c -> Contains function for directing the functions for each command
3. parse_line -> Breaks the line into words taking space as delimiter.
4. built.c -> Functions for builtin commands.
5. execute.c -> function to execute all commands except specified in the assignment.
6. func_ls.c -> function for executing ls command.
7. pinfo.c -> function for pinfo command
8. read_line.c -> read the input line character by character.
9. remindme.c -> function for remindme(BONUS)
10. semicolon.c ->function that separate command using semicolon as delimiter.
11. shell_clock.c -> displays the current time and date.(BONUS) 12)shell_prompt.c -> prompt function. 13)check_back.c -> checks if the background process has terminated or not. 14)jobs -> functions for jobs and kjobs
12. piping.c -> function for pipe command
13. redirection.c -> function for redirection command 17)env_var.c -> conatins function for setting and unsetting environmnet variable. 18)fg_bg.c -> function for fg and bg command.