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23 lines
661 B
23 lines
661 B
#!/bin/bash
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false
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while [ $? -ne 0 ]; do sudo true; done
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SEC=false
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for ARG in "$@"; do
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case "${ARG}" in
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"--secure") SEC=true ;;
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*) [[ -b "${ARG}" ]] && DVC+=("${ARG}") || ( echo "${ARG} is not a block device"; exit 1 ) ;;
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esac
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done
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echo -n "Filling ${DVC[@]} with "
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${SEC} && echo "random data" || echo "zeros"
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for DEV in "${DVC[@]}"; do
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echo "${DEV}:"
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${SEC} && openssl enc -aes-256-ctr -pbkdf2 -pass pass:"$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64)" -nosalt </dev/zero | sudo dd of=${DEV} bs=4M conv=notrunc status=progress
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${SEC} || sudo dd if=/dev/zero of=${DEV} bs=4M conv=notrunc status=progress
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done
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