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#!/bin/sh
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FILE=$1
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SIZE=$2
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if [ -z "$FILE" ]; then
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echo "Usage: "pad FILE SIZE""
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exit 1
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fi
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fsize=$(wc -c $FILE | cut -d " " -f 1)
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pad=$(expr $SIZE - $fsize)
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if [ $pad -lt 0 ]; then
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echo "File size $fsize is larger than total, padded size $SIZE."
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exit 1
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fi
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echo "Padding $FILE from $fsize to $SIZE... padding with $pad bytes"
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if [ $pad -gt 0 ]; then
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dd if=/dev/zero bs=$pad count=1 2>/dev/null >> $FILE
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fi
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