Futurebasic/Language/Reference/append

Statement
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Syntax
append [#]fileID

Description
This statement moves the file mark, in the currently-open file indicated by, to the end-of-file position (without overwriting any of the existing data in the file). This causes subsequent file output statements such as,   and   to append data to the end of the file.

Example
In the following, note that we open the output file using the "R" method. This is because opening with the "O" method causes the "end-of-file" mark to move to the beginning of the file, effectively erasing any existing data. a$ = "TESTING..." open "R", 1, fileName$,, wdRefNum% 'Open an existing file append #1                         'Set file pointer to end write #1, a$;25                   'Add data to end of file close #1                          'Close file