APPE
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... STOU (store unique) is undefined in this usage, as
storing the remainder of a file into a unique file name is rarely
going to be useful. If APPE (append) is permitted, it MUST act
identically to STOR when a restart ...
...
The "a" permission applies to objects of type=file, and indicates
that the APPE (append) command may be applied to the file named.
The "c" permission applies to objects of type=dir (and type=pdir,
...
... STOU command is likely to succeed, and that
STOR and APPE commands might succeed if the file named did not
previously exist, but is to be created in the directory object that
...
... bits set, and consequently the connected user should be
able to STOR or APPE to that file.
The other four file names, "file1", "file2", "file3", and "file4" all
...