Red Hat LINUX 7.2 Manual page 190

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This is a little like viewing the tip of an iceberg. The directories you see are the parent directories of
other directories, in which there may be other directories, and so on.
Figure A–3 A View of the Directories from Root
Here are just a few of the directories you are likely to find:
etc
usr
There are more, but for now, take a look at the /etc directory.
[newuser@localhost /]$ cd etc
[newuser@localhost /etc]$ ls
Here, among other things, you will find configuration files, which are files that help make programs
work for your system, store program and system settings, and more.
Among the directories in here, you will see /etc/X11, which also contains directories and configu-
ration files for the X Window System.
In the directory /etc/skel, you will find skeleton user files, which are used to populate newly
created user accounts with standard, commonly used files.
lib sbin
var
Appendix A:Computer Basics