Time Machine Importer

tmimport.sh <backup drive>

Time Machine Importer modifies the metadata of a backup drive to match the 
current computer's model and unique identifiers (primary MAC address and
hardware platform UUID/provisioning UDID) and attempts to 'inherit' the
backup history.

The backup drive should be specified by disk or volume name (or path) or
the mount point of the backup drive. If Time Machine Importer cannot find
an appropriate disk volume or mount point, it will check to see if the 
specified directory is a valid Backups.backupdb location (or a machine
directory under one).

A future version may attempt to detect HFS+ or APFS partitions serving as
backup drives, and, if a backup drive is specified as a device path, it
will automagically choose the correct backup path.

dirdedupe

Directory De-Duplication ("Dirty Dupe")

dirdedupe.sh [--execute] masterdir shadowdir

For each file in shadowdir, replace it with a hard link to the matching file
(if any) in masterdir.  A file will be considered a match if, and only if, it
shares the same file name, relative path, and contents.

OPTIONS

   --execute  Actually remove and link duplicate files. By default, this 
              program runs in test mode.