2014-06-29 00:25:23 +00:00
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Description
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2014-06-29 00:29:55 +00:00
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Give a directory, find all transitive subdirectories of which two or more
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duplicates exist.
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2014-06-29 00:25:23 +00:00
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2014-06-29 00:29:55 +00:00
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Two directories are considered a duplicate of each other if their sha256
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checksums are equal. A directory's sha256 checksum is calculated from the
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concatenation of the following content of the directory:
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2014-06-29 00:25:23 +00:00
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- all file names
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- all file contents
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- the targets of all symlinks (links are not followed)
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- all direct subdirectory names
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- the sha256 of its direct subdirectories
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To avoid clutter, only those duplicate directories are printed for which at
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least one parent directory has a different hash from the others. This avoids
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printing duplicate directories for which their parents are also all the exact
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duplicate of each other.
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The output format has 4 or more columns separated by tabs. The first column
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lists the diskusage as it would be returned by `du -b`. The second column lists
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the amount of elements in this sub directory tree as it would be returned by
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`find | wc -l`. All subsequent columns list the duplicate directories with the
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same content.
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