Tools for deduping file systems.

Duperemove is a simple tool for finding duplicated extents and submitting them for deduplication. When given a list of files it will hash their contents on a block by block basis and compare those hashes to each other, finding and categorizing extents that match each other. When given the -d option, duperemove will submit those extents for deduplication using the Linux kernel FIDEDUPERANGE ioctl.

• Duperemove @ GitHub.
• Episode 588: Clearing out the Tumbleweeds @ Linux Unplugged.