20 lines
356 B
Bash
20 lines
356 B
Bash
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#!/bin/dash
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# USAGE: erase-disk.sh <passes> <device>
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# Must be run as root
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echo "# Securely erasing the disk device $2"
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i=1
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while [ $i -le $1 ]; do
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[ $i -eq 1 ] && if="/dev/urandom" || if="/dev/zero"
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echo "\n- Begin pass $i with $if"
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dd if="$if" of="$2" status="progress"
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echo "- Syncing I/O"
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sync
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i=$(( i + 1 ))
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done
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