The command functions more or less like a single-line command-line interface. In the GNOME (a UNIX-like derivative) interface, the Run command is used to run applications via terminal commands. It can be accessed by pressing Alt+F2. KDE (a UNIX-like derivative) has similar functionality called KRunner. It is accessible via the same key binds.
Accessing the Run command
Starting with Windows 95, the Run command is accessible through the Start menu and also through the shortcut key ⊞ Win+R. Although the Run command is still present in Windows Vista and later, it no longer appears directly on the Start menu by default, in favor of the new search box and a shortcut to the Run command in the Accessories sub-menu.
Uses include bringing up webpages; for example, if a user were to bring up the Run command and type in
http://www.example.com/, the user's default Web Browser would open that page. This allows user to not only launch
http protocol, but also all registered URI schemes in OS and applications associated with them, like