mysql安装及允许远程访问

use mysql;

delete from user where user=\'\';

grant all privileges on *.* to \'root\'@\'%\' identified by \'123456\' with grant option;

 flush privileges;

service mysql restart

===================安装脚本==============================

#!/bin/bash
#----------install packages----------
yum -y install perl perl-Module-Install.noarch
#----------setting mysql install directory----------
function install_dir(){
        echo \'Please input mysql isntall dir[/usr/local]:\'
        read dir1
if [ -z $dir1 ]
    then
        dir1=\'/usr/local\'      
fi
  echo \'Install dir is 【\'$dir1\'】\'
}
install_dir
#----------setting mysql data directory----------
function mysql_data(){
        echo \'Please input mysql_data dir[/usr/local/mysql/data]:\'
        read dir2
if [ -z $dir2 ]
    then
        dir2=\'/usr/local/mysql/data\'
fi
 echo \'mysql_data dir is 【\'$dir2\'】\'
}
mysql_data
#----------setting mysql port ----------
function mysql_port(){
        echo \'Please input mysql_port[3306]:\'
        read port1
if [ -z $port1 ]
    then
        port1=\'3306\'
fi
echo \'mysql_port is 【\'$port1\'】\'
}
mysql_port
#----------add mysql user and group----------
mkdir -p $dir1/mysql
mkdir -p $dir2
groupadd mysql
useradd -g mysql -d $dir1/mysql mysql

#log
echo \'mysql install dir:\'$dir1\'/mysql\'>>./install.log
echo \'mysql data dir:\'$dir2>>./install.log
echo \'mysql port:\'$port1>>./install.log
function setting2(){
rm -rf /etc/my.cnf
rm -rf /etc/init.d/mysql
cp $dir1/mysql/support-files/my-default.cnf /etc/my.cnf
cp $dir1/mysql/support-files/mysql.server /etc/init.d/mysql
dir11=\'basedir=\'$dir1\'/mysql\'
dir12=\'datadir=\'$dir2
port11=\'port =\'$port1
sed -i \'46d\' /etc/init.d/mysql
sed -i \'46d\' /etc/init.d/mysql
sed -i "46a\\$dir11"  /etc/init.d/mysql
sed -i "47a\\$dir12"  /etc/init.d/mysql
sed -i "23a\\$port11" /etc/my.cnf
sed -i \'/MYSQL_HOME/d\' /etc/profile
echo \'export MYSQL_HOME=\'$dir1\'/mysql\'>>/etc/profile
echo \'export PATH=$PATH:$MYSQL_HOME/bin\'>>/etc/profile
source /etc/profile
echo \'Mysql Install Successfull\'
}
function setting1(){
rm -rf $dir1/mysql/*
cp -R  mysql-5.6.36-linux-glibc2.5-x86_64/* $dir1/mysql/
echo \'start install database......\'
$dir1/mysql/scripts/mysql_install_db --user=mysql --basedir=$dir1/mysql --datadir=$dir2
declare -i p1
sum=0
while(($sum<=10))
do
    sleep 1
        if [ $sum -gt 3 ]
        then
            p1=`ps -ef|grep mysql_install_db |grep -v "grep" |awk \'{print $2}\'`
            if [ $p1 -eq 0 ]
            then
                sleep 5
                setting2
                break
            fi
            sum=1
    fi
let "sum++"
done
}


#----------install database start----------
src_path=\'mysql-5.6.36-linux-glibc2.5-x86_64\'
if [ ! -d $src_path ]
then
    tar -xvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
    declare -i p2
    sum=0
    while(($sum<=10))
    do
    sleep 1
    if [ $sum -gt 3 ]
        then
        p2=`ps -ef|grep mysql-5.6.36 |grep -v "grep"|awk \'{print $2}\'`
        if [ $p2 -eq 0 ]
            then
            sleep 10
            setting1
            break
        fi
        sum=1
    fi
    let "sum++"
    done
else
    setting1
fi