DEF is an interactive utility that creates RMS-11 files. To invoke installed DEF: MCR>DEF[command string] DCL>MCR DEF[command string] To invoke uninstalled DEF: RUN $RMSDEF command string can be: 1. @filespec Reads an indirect command file 2. HELP or ? Prints introductory HELP message 3. /ID Prints DEF's version number If you do not include a command string, DEF will prompt you for file definition information. You respond by typing: Y (yes) N (no) Terminates DEF ? Provides help text for specific question being asked or by providing specific information, such as file name, file organization, record format. For details, see the RMS-11 User's Guide.