DESCR 419 B

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  1. The poor man's daily snapshot, glastree builds live backup trees, with
  2. branches for each day. Users directly browse the past to recover older
  3. documents or retrieve lost files. Hard links serve to compress out
  4. unchanged files, while modified ones are copied verbatim. A prune
  5. utility effects a constant, sliding window.
  6. Satoru Takabayashi has written a similar program, in Ruby, pdumpfs.
  7. Inspired by Plan9, of course.