===Unix / Linux File Management Concepts===
xThe Unix/Linux file system is hierarchical, similar to other operating systems such as Windows, Mac OSX, etc.Files are organized in directories. Directories may contain sub-directories. In Unix / Linux (as opposed to MS Windows), there are no drive letters (such as C:, or D:). All files and directories appear under a single ancestor directory called "the root directory". Learning how to issue Linux commands for navigating the Linux filesystem and manipulating directory and files that are contained in those directories.
=INVESTIGATION 1: MANAGING DIRECTORIES=
