| Abbreviation | Definition |
|---|---|
| ACME | Acme (computer virus), a computer virus which infects Microsoft DOS EXE files |
| APPEND | Application File search path |
| APPEND | command that enables a user to open files in the specified directory as if they were in the current directory |
| ASSIGN | ASSIGN or Re-assign the specified drive |
| ATTRIB | ATTRIButes |
| BACKUP | Back-up files |
| BE | Bus Edit |
| BREAK | [ON/OFF] watch for a break in execution, or not |
| CALC | CALCulator |
| CALL | Invoke a Batch file as a subroutine |
| CHCP | CHange Code Page |
| CHDIR | Change Directory |
| CHKDSK | Check Disk |
| CLS | CLear the Screen |
| CMD | Command |
| COLOR | Change the color of the DOS environment |
| COMMAND | a Batch command (under DOS 2.0) |
| COMP | COMPare Files |
| CON | accept CONSOLE (keyboard) output |
| COPY | COPY a file |