CD may refer to any of the following:
1. Short for compact disc, see the compact disc definition for additional information about this term.
2. Short for change directory, cd is a command commonly used to change the directory in a command line operating system.
Basic examples of the CD command
Below is a quick overview of the available options for the CD command. These options may be different for your command line (e.g., MS-DOS vs. Linux) for more detailed information see the cd command page for your command line in the related pages section.
|Moves into the hope directory if available in the current directory. This directory name could be substituted for any name.
|cd .. or cd..
|Move back one directory (parent directory). MS-DOS and the Windows command line supports either of these commands. However, Linux requires the space between the cd and the two periods.
|cd\ or cd /
|Moves back to the root directory.
|Moves back to the home directory.
5. The Internet domain suffix .cd is short for Democratic Republic of the Congo.