4 FUSE file mount for combining file fragments read-only.
7 **fusefile** [__fuse options__] **mountpoint** __filename/from-to__ ...
11 **fusefile** is FUSE file mount that presents a series of fragments of
12 other files as a contiguous concatenation. It bind mounts a driver on
13 top of the file mountpoint to present the nominated file fragments as
14 a single, contiguous file.
16 The fragment arguments include the filename of a source file, and
17 optionally start and end byte positions. All in all there five
20 * __filename__ include all of the file.
22 * __filename/__ include all of the file named with "/" in the pathname. This case requires a final "/", since the last "/" separates the filename from the position details.
24 * __filename/from__ include the file from the given start position, to end.
26 * __filename/-to__ include the file from beginning to the given end position (not included).
28 * __filename/from-to__ include the file from the given start position, up to the given end position (not included).
32 Insert file "y" into file "x" at position 1200:
34 $ fusefile -ononempty x x/-1200 y x/1200
35 The bind mount shadows the original file "x", and presents the
38 Make file y be a swap of the beginning and end of file "x", at
41 $ fusefile y x/2442 x/-2442
45 Note that **fusefile** opens the nominated source file(s) before bind
46 mounting. With the fuse option __-ononempty__ it will bind over an
47 non-empty file, which may be useful. The source file descriptors
48 remain open, but the source fragments are not recomputed. If a source
49 file changes or reduces in size, anything may happen.
51 If the mountpoint file doesn't exist, then **fusefile** creates it,
52 and removes it when unmounted.
56 Ralph Rönnquist <ralph.ronnquist@gmail.com>