wipe 命令

常用示例

说明

wipe securely deletes files by overwriting their contents with special patterns to prevent data recovery. By default, it performs 34 write passes including 8 random patterns, based on research by Peter Gutmann on secure data erasure. The command overwrites the file, renames it multiple times, truncates it, and finally unlinks it. This multi-step process defeats various data recovery techniques used on magnetic storage. For faster operation, use -q for 4 passes or -Q to specify a custom number between 4 and 34.

参数

-f

Force; disable confirmation prompts

-r

Recursively wipe directories and contents

-c

Request confirmation for each file (default for regular files)

-s

Silent mode; suppress most output

-v

Verbose mode; show progress

-q

Quick wipe; use 4 passes instead of 34

-Q _passes_

Quick wipe with specified number of passes

-a

Abort on errors instead of continuing

-k

Keep files after wiping (don't unlink)

-Z

Single-pass zero overwrite (fast but less secure)

-l _LENGTH_

Set file size limit for wiping

-e

Use exact file size (do not round up to wipe slack space)