It is fairly common for companies to dispose of their obsolete hard drives. However, most of them want to ensure all data is shredded from the hard drives. Finding a Windows-based wipe program was fairly easy, but finding a UNIX-based program took a little more searching. BCWipe is a program that will wipe a UNIX-based hard drive clean. The BCWipe website claims their multi-platform UNIX version is intended to give you a confidence that your deleted files cannot be recovered by an intruder. BCWipe repeatedly overwrites special patterns to the files to be destroyed.
Note: Most likely you will have to compile the source code for your particular platform architecture.
BCWipe for UNIX offers the following wiping schemes per their site.
1. US DoD 5220.22-M standard (7 passes with verification)
2. User-defined number of passes
3. Peter Gutmann's 35 pass scheme
BCWipe for UNIX is designed as a multi-platform solution. Here is their supported list of various UNIX flavors.
Linux 2.0-2.6
FreeBSD 3.0-4.6
OpenBSD 2.8
Solaris 8-10
Digital UNIX 4
SGI Irix 6.5 (wiping block devices was not tested)
IBM AIX 5
HP-UX 10, 11
Here is the download link for 30 day evaluation.
BCWipe Download