fScan Reference Manual, Chapter 2 (CmdLineOptions): writeover
The WRITEOVER command temporarily sets the internal OVERWRITE flag.
By default, OVERWRITE is zero and any attempt to overwrite an existing file will generate an error message.
If OVERWRITE is non-zero, write operations will overwrite existing data files without generating any message.
When OVERWRITE is set using the WRITEOVER command, the flag remains set only until the next file writing command. This allows you to selectively indicate which data files to overwrite.
-o exam.wdf -w ; force writing of file named "exam.wdf", even if it already exists -o -w ; force writing of current data set to file, even if that file exists
The default behavior of the OVERWRITE flag can changed using the -SET OVERWRITE command.
-set overwrite ; allow any file to be overwritten without generating error messages -set overwrite 0 ; default is to not allow existing files to be written unless -w is used