Besides covering basic differentiations, this article could serve to improve the quality of the Wiki by avoiding repetition. How many articles say: "edit in ~/.bashrc, or zhrc (if you're using zsh) -- alternatively, edit /etc/profile.bash for system-wide changes" or something to that effect? And even though it sounds counterintuitive, expanding this article makes the Wiki better for advanced users as well, since they won't be presented with the same old information they're accustomed to skip.
We could have a basic run down of common file locations and what they mean, instead of explaining them in every article. Editors can just say "add the following to the shell's configuration" and readers would then decide whether they want it system-wide or not, etc.
Just like article:ABS is referred to in every page that involves compiling, this page could serve the same kind of utility.
sudo was removed because $ is already indicating that it should be ran as normal user, or should be indicating that in all articles. And it's not part of the core packages nor the intent of the article. manolo 13:42, 12 November 2009 (EST)
Sudo was added, to make it clear to the reader that sudo is something extra they need to install and configure in order to use it. If you search for sudo in the wiki you will see it is mentioned quite a bit. I'm fine whether it is included in this page or not. I did make it too verbose, maybe a short note should suffice. M l 15:59, 12 November 2009 (EST)