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#!/bin/bash -e
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IFILE=$1
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OFILE=$2
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dd if=/dev/zero bs=4M count=1 of=$OFILE 2>/dev/null
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dd if=$IFILE of=$OFILE conv=notrunc 2>/dev/null
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# 0xffff0000: fe 3f f0 ea b 0xffc00000
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echo -n -e "\xfe\x3f\xf0\xea" | dd of=$OFILE bs=64K seek=63 conv=notrunc 2>/dev/null
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