Scrub iteratively writes patterns on files or disk devices to make retrieving the data more difficult.
Scrub operates in one of three modes:
1) The special file corresponding to an entire disk is scrubbed and all data on it is destroyed. This mode is selected if file is a character or block special file. This is the most effective method.
2) A regular file is scrubbed and only the data in the file (and optionally its name in the directory entry) is destroyed. The file size is rounded up to fill out the last file system block. This mode is selected if file is a regular file.
3) A file is created, expanded until the file system is full, then scrubbed as in 2). This mode is selected with the -X option.
What's New in This Release:
· Added -r option to remove file after scrub.
· Port to HP-UX.
· Raise default blocksize to 1MB for performance.
· Added support for K, M, or G size suffix to -b argument.
· Fix broken -s parsing on 32 bit systems.