［转载］系统备份

#!/bin/bash
# a2system  Backs up or recover all files in / directory
# update:     06/08/2005

if [ "$#" = 0 ]; then
echo "使用方法:"
echo "        1)sudo ./$(basename "$0") filename backup  用于备份系统"
echo "        2)sudo ./$(basename "$0") filename recover 用于恢复系统"
exit 1
fi

if [ "$2" = "backup" ];
then
aptitude clean
tar jcvfp /"$1".tar.bz2 / --exclude=/proc --exclude=/lost+found --exclude=/mnt --exclude=/sys --exclude=/"$1".tar.bz2 --exclude=/windows --exclude=/media --exclude=/tmp
elif [ "$2" = "recover" ];
then
tar jxvfp /"$1".tar.bz2 -C /
mkdir /proc /lost+found /mnt /sys /media /windows /tmp
else
echo "请确认你输入的第二个命令行参数是否正确！"
fi