Working directory

With the CLIs of operating systems like Unix and MS-DOS, you have special abilities while "in" a directory. That is, you may execute[?] a program or refer to a file that is in your working directory by typing only its name; not necessarily its full absolute path. You may also refer to other directories or files lower or higher in the hierarchy by their relative paths, relative to your current working directory.

In DOS and Unix, you may use the cd command to change your current working directory.