Rehat一键安装mysql脚本和备份数据库脚本

Rehat一键安装mysql脚本

##说明：适用，Rehat 5 6 7

1.运行状态，运行成功输出mysql临时密码

2.代码如下

#!/bin/bash  

#获取系统信息
sudo cat /etc/issue>myfile

aa=sudo grep '5.' myfile
bb=sudo grep '6.' myfile
cc=sudo grep '7.' myfile

echo $aa

echo "It is a test" > myfile

#获取系统信息
sudo cat /etc/issue>myfile

aa=sudo grep '5.' myfile
bb=sudo grep '6.' myfile
cc=sudo grep '7.' myfile

echo $aa
echo $cc
echo $bb

#配置yum源
if [ "$aa"x != "''"x ]
then

  echo "您的系统是rehat5的版本，即将为您安装mysql"

  wget https://repo.mysql.com//mysql57-community-release-el5-8.noarch.rpm --no-check-certificate

  rpm -Uvh mysql57-community-release-el5-.noarch.rpm

elif [ "$bb"x != "''"x ]
then

  echo "您的系统是rehat6的版本，即将为您安装mysql"

  wget https://repo.mysql.com//mysql57-community-release-el6-10.noarch.rpm --no-check-certificate

  rpm -Uvh mysql57-community-release-el6-.noarch.rpm

elif [ "$cc"x != "''"x ]
then

  echo "您的系统是rehat7的版本，即将为您安装mysql"

  wget https://repo.mysql.com//mysql57-community-release-el7-10.noarch.rpm --no-check-certificate

  rpm -Uvh mysql57-community-release-el7-.noarch.rpm

fi

#安装系统
yum install mysql-community-server

#启动服务
service mysqld start

#查看临时密码文件
grep 'temporary password' /var/log/mysqld.log

Rehat备份mysql脚本

1.代码如下：

#!/bin/bash  

#保存备份个数
number=
#备份保存路径
backup_dir=/root/mysqlbackup
#日期
dd=`date +%Y%m%d`
#备份工具
tool=mysqldump
#用户名
username=root
#密码
password=******
#将要备份的数据库
database_name=users  

#简单写法  mysqldump -u root -p123456 users > /root/mysqlbackup/users-$filename.dump
$tool -u $username -p$password $database_name > $backup_dir/$database_name-$dd.dump  

#写创建备份日志
echo "create $backup_dir/$database_name-$dd.dupm" >> $backup_dir/log.txt  

#找出需要删除的备份
delfile=`ls -l -crt  $backup_dir/*.dump | awk '{print $9 }' | head -1`  

#判断现在的备份数量是否大于$number
count=`ls -l -crt  $backup_dir/*.dupm | awk '{print $9 }' | wc -l`  

if [ $count -gt $number ]
then
  rm $delfile  #删除最早生成的备份，只保留number数量的备份
  #写删除文件日志
  echo "delete $delfile" >> $backup_dir/log.txt
fi