linux 对 etc配置文件备份

//看兄弟连视频写的

#!/bin/bash

date=$(date +%y%m%d)

size=$(du -sh /etc)

if [ -d /tmp/dbback ]

then

echo "date is:$date">>/tmp/dbback/info.txt

    echo "size is:$size">>/tmp/dbback/info.txt
	
    cd /tmp/dbback
	//加上P就不会出现错误，虽然错误不影响结果
	
    tar -zcPf etc_$date.tar.gz /etc info.txt
	
    rm -rf info.txt

else mkdir /tmp/dbback

echo "date is:$date">>/tmp/dbback/info.txt
	
    echo "size is:$size">>/tmp/dbback/info.txt
	
    cd /tmp/dbback
	
    tar -zcPf etc_$date.tar.gz /etc info.txt
	
    rm -rf info.txt

fi