df | Reports information about space on file systems. |
. | The current working directory. |
.. | The directory above the current working directory (the parent directory). |
~ | Your home directory (this is not true for the Bourne Shell). |
$HOME | Your home directory (this is true for all shells). |
cd | Changes the current directory. |
cp | Copies files or directories. |
dircmp | Compares two directories and the contents of their common files. |
ls | Displays the contents of a directory. |
mkdir | Creates one or more new directories. |
mvdir | Moves (renames) a directory. |
pwd | Displays the path name of the working directory. |
rmdir | Removes a directory. |
Chapter 4, Input and Output Redirection
Chapter 8, Backup Files and Storage Media
Chapter 9, File and System Security