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NRM

Download nrm-1.0

Nrm is intended as a secure replacement for rm that frustrates known forensic techniques while appearing to the user to be operationally very similar to regular rm. It does its work quickly and in the background, making it suitable for everyday usage.

Nrm will first unlink all the files requested, and then overwrite files using the Gutmann overwriting techniques in the background. It will write a pass of random data across all files before going the the second pass. In this way, the maximum damage to files is done as quickly as possible. This makes nrm more secure in time-restricted situations than existing secure file-deletion utilities that do their file overwriting serially, destroying one file completely before moving on to the next.

Note that nrm is probably somewhat ineffective on journaled filesystems. It will delete the files, and it will write crud onto the disk, but there is no guarantee that the crud it writes onto the disk is actually overwriting your old file data.