I’ve got too many snapshots but I don’t want to delete them all. No one seems to have written down the required magic.
The following worked for me:
zfs list -r -t snapshot -o name big/stuff | grep aaarrghh | xargs -n1 zfs destroy
It will delete all snapshots with the word ‘aaarrghh’ in its name from the file-system ‘big/stuff’.
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