Process Attributes

This is a very simple get-started assignment. Create a Unix or Linux (or Mac, presumably) program that runs and prints out its process id, its parent process id, its owner user id and its owner group id. Like this:

Each of these data are supplied by library calls (that ultimately perform system calls). In order, getpid, getppid, getuid, and getgid. They are documented by running the man command on a Unix system (Sandbox works fine). Googling them works pretty well, too. You may compile your program as plain C or C++, as you like.

You are welcome to install Linux or BSD on your own equipment, or use the Sandbox server. If you need Sandbox credentials or a password change, drop by or email me.

If you're working on Sandbox, you can use the very simple nano, the traditional vi, or the rococo emacs. If you use emacs, I recommend first running the local command emacscust, which makes some customations, including enabling the mouse and adding key sequences (control-x, control-e and control-x control-n) for compiling and moving through any errors. You can also use WinSCP to edit your Sandbox files remotely from a Windows desktop.

When your program works correctly and looks nice, submit it here.