define forward slash
forward slash. The forward slash (or simply slash) character (/) is the divide symbol in programming and on calculator keyboards. For example, 10 / 7 means 10 divided by 7. The slash is also often used in command line syntax to indicate a switch. For example, in the DOS/Windows Xcopy statement xcopy *.* d: /s, the /s is a switch that tells the program to copy all subfolders.