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