查看硬盘的大小脚本
[[email?protected] ~]# vi repboot.sh
#!/bin/bash
# To show usage of /boot directory and mode of kernel file.
echo "Useage of /boot: "
du -sh /boot
echo "The mode of kernel file:"
ls -lh /boot/vmlinuz-*
[[email?protected] ~]# chmod a+x repboot.sh
逻辑整理：
#!/bin/bash
#To show usage of /boot directory and mode of kernel file.
A=`du -sh /boot | awk ‘{print $1}‘`
echo "Usage of /boot: " "$A"
B=`ls -lh /boot/vmlinuz-* | awk -F"/" ‘{print $3}‘`
echo "The mode of kernel file: " "$B"
unset A
unset B
每周五17:30清理FTP服务器的公共共享目录
? 检查 /var/ftp/pub/ 目录，将其中所有子目录及文件的详细列表、当时的时间信息追加保存到 /var/log/pubdir.log 日志文件中，然后清空该目
录
[[email?protected] ~]# vi /opt/ftpclean.sh
#!/bin/bash
date >> /var/log/pubdir.log
ls -lhR /var/ftp/pub >> /var/log/pubdir.log
rm -rf /var/ftp/pub/*
[[email?protected] ~]# crontab -e
30 17 * * 5 /opt/ftpclean.sh
每隔3天对数据库目录做一次完整备份
? 统计 /var/lib/mysql 目录占用的空间大小、查看当前的日期，并记录到临时文件 /tmp/dbinfo.txt 中
? 将 /tmp/dbinfo.txt 文件、/var/lib/mysql 目录进行压缩归档，备份到/opt/dbbak/目录中
? 备份后的包文件名中要包含当天的日期信息
? 最后删除临时文件/tmp/dbinfo.txt
[[email?protected] ~]# vi /opt/dbbak.sh
#!/bin/bash
DAY=`date +%Y%m%d`
SIZE=`du -sh /var/lib/mysql`
echo "Date: $DAY" >> /tmp/dbinfo.txt
echo "Data Size: $Size" >> /tmp/dbinfo.txt
mkdir /opt/dbbak
cd /opt/dbbak
tar zcvf mysqlbak-${DAY}.tar.gz /var/lib/mysql /tmp/dbinfo.txt
rm -f /tmp/dbinfo.txt
[[email?protected] ~]# crontab -e55 23 */3 * * /opt/dbbak.sh
