vim backup_etc.sh
chmod 755 backup_etc.sh
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#!/bin/bash# 备份/etc文件# Author:James 2016-10-14# 同步亚洲时间ntpdate asia.pool.ntp.org &>/dev/null
# 以年月日格式显示日期date=$(date +%y%m%d)
# 查看/etc文件大小size=$(du -sh /etc)
# /tmp/etcback文件夹是否存在if [ -d /tmp/etcback ]
then
echo "Date:$date!" >/tmp/etcback/info.txt
echo "Data Size:$size" >>/tmp/etcback/info.txt
cd /tmp/etcback
# 压缩/etc和info.txt
tar -zcf etc-$date.tar.gz /etc info.txt &>/dev/null
rm -rf /tmp/etcback/info.txt
else
mkdir /tmp/etcback
echo "Data Size:$size" >>/tmp/etcback/info.txt
cd /tmp/etcback
# 压缩/etc和info.txt
tar -zcf etc-$date.tar.gz /etc info.txt &>/dev/null
rm -rf /tmp/etcback/info.txt
fi