Wikipedia
The cd command, also known as chdir (change directory), is a command-line OS shell command used to change the current working directory in operating systems such as Unix, DOS, OS/2, TRIPOS, AmigaOS (where if a bare path is given, cd is implied), Microsoft Windows, ReactOS, and Linux. It can be used in shell scripts and batch files. The command is also available in the open source MS-DOS emulator DOSBox and in the EFI shell. The …
Cd (command) - Wikipedia, the free encyclopedia