16 lines
361 B
Markdown
16 lines
361 B
Markdown
---
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tags: [disks, procedural]
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created: Saturday, April 26, 2025
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---
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# Secure disk wipe
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```sh
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sudo shred -v -n 2 -z /dev/sda1
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```
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Overwrites the disk with random data multiple times (`-n 2`) and finishes with
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zeros (`-z`).
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The more overwrites you specify, the longer it takes. Three overwrites on a USB
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flash disk can take like three hours so use advisedly.
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