count-zeroes 0.2.1

Count zeroes on a disk or a file
Documentation
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  • Size
  • Source code size: 18.46 kB This is the summed size of all the files inside the crates.io package for this release.
  • Documentation size: 1.1 MB This is the summed size of all files generated by rustdoc for all configured targets
  • Ø build duration
  • this release: 9s Average build duration of successful builds.
  • all releases: 9s Average build duration of successful builds in releases after 2024-10-23.
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count-zeroes

Count zeroes on a disk or a file.

Installation & Usage

cargo install count-zeroes
count-zeroes /dev/sdXN

Purpose

This is useful if you want to check if an SSD has been trimmed or a disk has been wiped-clean. I found no obvious way to do that and it's useful when you try to recover a filesystem to avoid chasing ghosts. In my case, an attempt to recover a BTRFS partition showed me there was a superblock somewhere but it was just some random unrelated data.

This program can be used as a library, it has no dependency. It is optimized for speed.