2020-08-01 18:33:41 +01:00
|
|
|
# duperemove
|
|
|
|
|
|
2020-10-03 15:38:06 +01:00
|
|
|
> Finds duplicate filesystem extents and optionally schedule them for deduplication.
|
|
|
|
|
> An extent is small part of a file inside the filesystem.
|
|
|
|
|
> On some filesystems one extent can be referenced multiple times, when parts of the content of the files are identical.
|
2020-08-01 18:33:41 +01:00
|
|
|
> More information: <https://markfasheh.github.io/duperemove/>.
|
|
|
|
|
|
|
|
|
|
- Search for duplicate extents in a directory and show them:
|
|
|
|
|
|
|
|
|
|
`duperemove -r {{path/to/directory}}`
|
|
|
|
|
|
2020-10-03 15:38:06 +01:00
|
|
|
- Deduplicate duplicate extents on a Btrfs or XFS (experimental) filesystem:
|
2020-08-01 18:33:41 +01:00
|
|
|
|
|
|
|
|
`duperemove -r -d {{path/to/directory}}`
|
|
|
|
|
|
|
|
|
|
- Use a hash file to store extent hashes (less memory usage and can be reused on subsequent runs):
|
|
|
|
|
|
|
|
|
|
`duperemove -r -d --hashfile={{path/to/hashfile}} {{path/to/directory}}`
|
|
|
|
|
|
|
|
|
|
- Limit I/O threads (for hashing and dedupe stage) and CPU threads (for duplicate extent finding stage):
|
|
|
|
|
|
|
|
|
|
`duperemove -r -d --hashfile={{path/to/hashfile}} --io-threads={{N}} --cpu-threads={{N}} {{path/to/directory}}`
|
