24 Batch files

 FD will, in most cases, be run from a DOS batch (.BAT) file. When it
 terminates, it will return certain errorlevels that you can trap for
 in your batch file.


     24.1 Errorlevels

     1           Internal error
     2           External error - missing files, paths, etc.
     3           Insufficient available disk space (less than 32 KB)
     4           (reserved)
     5           Unable to initialize modem
     6           Incorrect FOSSIL version
     7           FOSSIL not loaded or detected
     8           FrontDoor already loaded, issue EXIT to return
     9           (reserved)
     10          User break
     11 - 30     (reserved)
     31 - 255    User definable errorlevels

 If you invoke the Terminal from DOS by running FD /T, it will always
 terminate with an errorlevel of 10 (User break), the same applies
 when you have specified "Terminal-only" in FDSETUP.