twofold

An exercise in duplicate-finding.

Purpose

Find duplicates within a folder and list, link or remove them. Slightly dangerous, no backsies if you screw up.

Usage

The simplest invocation is to list duplicates in the current directory. Example:

$ twofold -l
Deep-scanning /Users/orb/go/twofold

You can specify a path as its sole standalone argument:

$ twofold -l ~/Downloads
Deep-scanning /Users/orb/Downloads

All duplicates found will be listed, grouped by hash, then the program exits.

Use the -v flag to also display checksumming progress while it traverses the path.

The slightly more destructive flags are:

• --symlink to remove and symlink duplicates from the first file in the set
• --hardlink to remove and link (a.k.a. hardlink) duplicates to the inode of the first file in the set (the most convenient, should the original move or be deleted)
• --remove to simply remove the duplicates (the most destructive option)

LICENCE

MIT.

TODO

• Maybe add date-sorting to make it possible to keep the oldest or newest of each set of duplicates.
• Search multiple supplied directories, finding duplicates between all of them.