Linux shell : 史上最简单的系统备份脚本

#!/bin/bash

# The is script backup /etc directory！

# Author： zhangjun （E-MAILL: bard_zhang@foxmail.com)

date=$(date +%y%m%d)
size=$(du -sh /etc)

if [ -d /tmp/dbbak ]
then
echo "Date: $date!" > /tmp/dbbak/dbinfo.txt
echo "Size: $size!" >> /tmp/dbbak/dbinfo.txt
cd /tmp/dbbak
tar -zcf etc_$date.tar.gz /etc dbinfo.txt &> /dev/null
rm -rf /tmp/dbbak/dbinfo.txt

else
mkdir /tmp/dbbak
echo "Date: $date!" > /tmp/dbbak/dbinfo.txt
echo "Size: $size!" >> /tmp/dbbak/dbinfo.txt
cd /tmp/dbbak
tar -zcf etc_$date.tar.gz /etc dbinfo.txt &> /dev/null
rm -rf /tmp/dbbak/dbinfo.txt
fi