fastshell

fastshell is an implementation of unix based os shell. I made this shell for self studying purpose using this excellent tutorial. fastshell is written in c. The code run and tested on OS X.

Compile and run

Compile fastshell with gcc:
gcc fast.c -o fast

Additional information

• Currently implemented the following internal shell commands: cd, help and exit.
• External commands can also be executed, that thanks to fast_launch method. As part of learning how shell works i used fork() and exec() methodology in order to execute a different processes and wait them to finish.

fastshell routine

fastshell has a standard shell routine:

• get user input: fast_read_line();
• parse user input: fast_parse_line(line);
• execute the command: fast_execute(args);

Feel free to create a pull request & code review :)