smallsh is a simple unix shell created as part of CS340 - Operating System. It uses POSIX system calls to create a shell that features a subset of standard bash functionality.
smallsh is designed for any POSIX compatible OS. To compile the program with gcc, use make. Once compiled, the shell can be started with ./smallsh.
- Executing any program via full file path or PATH search
- Create background processes by appending an
&to the end of the command - Input/Output redirection with the
>and<operators - Built-in
status,cd, andexitcommands - Expansion of
$$into program PID - Disabling background processes with a SIGSTP signal (Cntl-Z), SIGINT signal handling