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A comment on Undeleting a file overwritten with mv. Parent comment

Re:Undeleting a file overwritten with mv by bestboy on Sunday November 29, 2020 @04:42AM (#25244074)
Using ZFS is no replacement for backups.

Still, this would have been a non-issue on a ZFS system:

  /var/recordings $ ll .zfs/snapshot/
  total 72
  drwxr-x---+ 7 root  root  7 Apr  9  2019 0003/
  drwxr-x---+ 7 root  root  7 Apr  9  2019 auto-2020-11-26_00-00/
  drwxr-x---+ 7 root  root  7 Apr  9  2019 auto-2020-11-27_00-00/
  drwxr-x---+ 7 root  root  7 Apr  9  2019 auto-2020-11-28_00-00/
  drwxr-x---+ 7 root  root  7 Apr  9  2019 auto-2020-11-29_00-00/
  drwxr-x---+ 7 root  root  7 Apr  9  2019 manual-2020-10-05/

  /var/recordings $ cp .zfs/snapshot/auto-2020-11-28_00-00/recording-16679.flv recording-16679.flv
(every directory/dataset contains an invisible .zfs directory "mounting" the snapshots of the dataset)
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