Unix system programs

This repository contains the implementation of different Unix system programs in C. They were written for an assignment of the operating systems classes I took. The goal is to use and understand the main POSIX system calls.

Uploaded here for anyone who appreciates operating systems or wants a quick reference.

Implemented programs:

1. date;
2. uptime;
3. ls;
4. cp;
5. rm;
6. mv;
7. cat;
8. mkdir;
9. rmdir;
10. chmod;
11. chown;
12. ps.

Note that these programs are simplified versions of the original ones since they were written for learning purposes.

Useful materials:

1. Linux man-pages: section 2;
2. Operating Systems Concepts (by Abraham Silberschatz);
3. Modern Operating Systems (by Andrew Tanenbaum).

Cristian Souza