Hello Shell and Signals!

This is an implementation of shell in C using fork() and exec() system calls. The main program acts as the parent process while the command entered is parsed and executed in the foreground as a child process.

It supports the following functionalities:

1. All standalone built in commands of Linux (eg., ls,cd,cat,echo).
2. Output redirection using '>'.
3. Piping using '|'.
4. Signal Handling for signals such as SIGINT.
5. Any number of linux commands separated by ";;" (eg., ls ;; date ;; sleep 10) can be executed one after the other independent of each other