From the start, FoxPro has always had a wide range of commands and functions for processing text – more than are strictly necessary for a database language. This is a list of some of the more useful commands and functions in Visual FoxPro. Many of them can accept extra optional parameters. Look in the FoxPro Help system for more information.
The distinction between commands and functions is that commands do something whereas functions just return a value to be displayed or used in another command.