mysql5.5一键安装脚本

#!/bin/bash
#mysql_multi install 
#date 2017/8/22
#author vaedit

function mysql_install(){
    useradd -M -s /sbin/nologin mysql
    tar xf mysql-5.5.57.tar.gz
    cd mysql-5.5.57
    yum -y install gcc gcc-c++ cmake ncurses-devel libtool zilib-devel
    cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql/ -DMYSQL_DATADIR=/data/mysql/ -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_DEBUG=0
    make && make install
    ln -s /usr/local/mysql/bin/* /usr/bin
    cp support-files/my-large.cnf /etc/my.cnf -f
    cp support-files/mysql.server /etc/rc.d/init.d/mysqld
    chmod 755 /etc/init.d/mysqld
    echo "开始初始化mysql实例"
    /usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/data/mysql --user=mysql
    echo "开始启动mysql"
    service mysqld start
    mysqladmin -u root password "52linux"
}
     

#检查是否安装mysql
if [ -d /usr/local/mysql ];then
    read -p "改机器已安装过mysql程序，是否继续安装【yes/no】" enter
else
    enter="yes"
fi
if [ "$enter" == "yes" ];then
     mysql_install
     if [ $? -eq 0 ];then
         echo -e '\e[32;40;1mmysql安装成功\e[0m'
         exit 0
     else
         echo -e '\e[31;40;1mmysql安装失败\e[0m'
         exit 1
     fi
else
    echo -e '\e[31;40;1mmysql安装失败\e[0m'
    exit 2 
fi