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+zfs-snapshot-clean
+------------------
+
+This is a tool to sieve ZFS snapshots as per given spec a la
+`pdumpfs-clean'.
+
+Typical usage is as follows:
+
+ for vol in zpool/home zpool/var; do
+ zfs snapshot "$vol@$(date +%Y-%m-%d)" && zfs-snapshot-clean "$vol"
+ done
+
+Run `zfs-snapshot-clean -h' for details.