[[!meta  title="find_duplicates"]]

I've reorganized my music a few times, and it took me a while to get
organized enough to want a single directory tree that held everything
I owned.  Every once and a while I go through the junk drawer and move
a few more songs into the "official" tree, checking their metadata and
whatnot.  I was getting annoyed at finding duplicate songs in several
junk drawers, so I wrote up a little script, [[find_duplicates.py]]
which can compare SHA1s for files in two trees and remove any
duplicates from the lesser tree.  Now there is a lot less junk to merge
into my official tree.

Sometimes you want to do something more effective than printing
duplicates, but more subtle than removing them.  To give you this
flexibility, I've added the `--one-line` option, which you can use
along these lines:

    $ find_duplicates.py dir_a dir_b --one-line | while read -a DUPS; do mv "${DUPS[1]}" "${DUPS[0]}".dup; done

[[!tag tags/code]]
[[!tag tags/fun]]
[[!tag tags/python]]