Root directory.
When a user logs in to a Unix system, the current working directory normally starts at the directory/file
It's where all settings, documents, private files, etc. are located.
ls -lR directory
CD /
Once your in the directory you have to type the following: du -a
Typically, programs store program information in hidden files in your home directory. The 'ssh' program stores cached host keys in the ".ssh" folder.
Directory tree structure in Unix always starts at the top node, or "root" node. It contains all of the major level subdirectories underneath it. The root directory is called "/" (root).
root directory is the top of the directory tree. it is \ on windows (or c:\ d:\ etc.) and / on unix/linux
The two links are for the current directory (.) and the parent directory (..). This is allow for easy directory traversal.
The ls command.
The host file in Unix is usually located in the /etc directory.