#!/bin/bash
datadir="/mydata/data"
sqlconf=/etc/mysql
installdir=/usr/local/mysql
# 关于安装包大家可以去官网下载，注意下载通用二进制格式的 ，然后放在ftp服务器上即可
# 此处假设我把mariadb5.5的安装包放在了ftp上的/pub/Sources/6.x86_64/mariadb下面
case $1 in
36)
        package=mariadb-5.5.36-linux-x86_64.tar.gz
        dir=mariadb-5.5.36-linux-x86_64
        wget lftp 172.16.0.1:/pub/Sources/6.x86_64/mariadb/$package
        ;;
40)
        package=mariadb-5.5.40-linux-x86_64.tar.gz
        dir=mariadb-5.5.40-linux-x86_64
        wget lftp 172.16.0.1:/pub/Sources/6.x86_64/mariadb/$package
        ;;
*)
        echo "Usage /bin/bash `basename $0` 36|40"
        exit 1
esac

#echo 'get mariadb-5.5.36-linux-x86_64.tar.gz
#bye ' | lftp 172.16.0.1:/pub/Sources/6.x86_64/mariadb

tar xf ${package} -C /usr/local
cd /usr/local
# 为其创建链接mysql方便以后管理
ln -s ${
      dir} mysql
cd ${installdir}
#创建mysql系统用户
if ! id mysql &> /dev/null; then
        useradd -r mysql
fi
# 创建数据文件目录
if [ ! -d ${datadir} ]; then
        mkdir -pv ${datadir} &> /dev/null
        chown -R mysql:mysql ${datadir}
fi
# 初始化mariadb
cd ${installdir}
scripts/mysql_install_db --user=mysql --datadir=/mydata/data &> /dev/null
# 为mariadb添加配置文件
if [ ! -d ${sqlconf} ]; then
        mkdir -p /etc/mysql &> /dev/null
fi
cd ${installdir}
cp support-files/my-large.cnf /etc/mysql/my.cnf
sed -i '/^thread_ca/a \datadir = /mydata/data \ninnodb_file_per_table = on \nskip_name_resolve = on' /etc/mysql/my.cnf
# 为mariadb添加服务脚本
cp ${installdir}/support-files/mysql.server /etc/rc.d/init.d/mysqld
chkconfig --add mysqld
# 添加mariadb命令至PATH环境变量
echo 'export PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh
. /etc/profile.d/mysql.sh
# 添加man手册
sed -i '/^MAN.*\/usr\/man/a MANPATH /usr/local/mysql/man/' /etc/man.config
echo 'The mariadb has installed successfully'
echo 'Please exect ". /etc/profile.d/mysql.sh" to update PATH'