Zeero

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Zeero is a Tru64 UNIX command/utility that zeros out disks prior to rewrite.^[1]

Purpose

It is a more efficient way of writing zeros to a disk (device file) than using /dev/zero with dd.^{[citation needed]}
It is a way of data erasure -- removing sensitive data from a disk, or disk partition.
shred would be more secure, but is not installed by default on Tru64 systems.

References

^ "Zeero(8) manual page". Retrieved 25 June 2010.

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