mysql创建用户授权shell

#!/bin/bash
declare -A chengshike
declare -A jinrizhuan
declare -A dazui
declare -A fengkuangshiwan
declare -A ceshiku

ceshiku=( ["host"]="地址" ["user"]="账号" ["passwd"]="密码" )
chengshike=( ["host"]="地址" ["user"]="账号" ["passwd"]="密码" )
jinrizhuan=( ["host"]="地址" ["user"]="账号" ["passwd"]="密码" )
dazui=( ["host"]="地址" ["user"]="账号" ["passwd"]="密码" )
fengkuangshiwan=( ["host"]="地址" ["user"]="账号" ["passwd"]="密码" )
#menu=(chengshike jinrizhuan dazui fengkuangshiwan)
itemname=$1
user=$2
passwd=`date +%s |sha256sum |base64 |head -c 10 ;echo`
command_linebin="/usr/bin/mysql"

function monitor()
{
        if [ "${itemname}" = "chengshike" ];then
                echo "${chengshike[host]}"
                hosts=${chengshike[host]}
                users=${chengshike[user]}
                passwds=${chengshike[passwd]}
                mysql

        elif [ "${itemname}" = "jinrizhuan" ];then
                echo "${jinrizhuan[host]}"
                hosts=${jinrizhuan[host]}
                users=${jinrizhuan[user]}
                passwds=${jinrizhuan[passwd]}
                mysql

        elif [ "${itemname}" = "dazui" ];then
                echo "${dazui[host]}"
                hosts=${dazui[host]}
                users=${dazui[user]}
                passwds=${dazui[passwd]}
                mysql

        elif [ "$itemname" = "fengkuangshiwan" ];then
                echo "${fengkuangshiwan[host]}"
                hosts=${fengkuangshiwan[host]}
                users=${fengkuangshiwan[user]}
                passwds=${fengkuangshiwan[passwd]}
                mysql
        elif [ "${itemname}" = "ceshiku" ];then
                echo "${ceshiku[host]}"
                hosts=${ceshiku[host]}
                users=${ceshiku[user]}
                passwds=${ceshiku[passwd]}
                mysql
        else 
                echo "1"
fi
}

mysql()
{
usertest="SELECT EXISTS(SELECT 1 FROM mysql.user WHERE user = '$user')"
msg=$(${command_linebin} -h $hosts  -u$users -p$passwds -s mysql -e "${usertest}")

echo $msg
#usertest=$(mysql -h $hosts -u$users -p$passwds -e "SELECT EXISTS(SELECT 1 FROM mysql.user WHERE user = "$user")")
if [ "$msq" = 1 ];then
    echo "$user 已存在"
    exit
else
echo "开始创建用户并授权" 
${command_linebin} -h $hosts  -u$users -p$passwds -s mysql <<EOF
create user '$user'@'%' identified by '$passwd';
GRANT Select ON *.* TO '$user'@'%';
flush privileges;
EOF
check
fi
}
check()
{
        usertest="SELECT EXISTS(SELECT 1 FROM mysql.user WHERE user = '$user')"
        msg=$(${command_linebin} -h $hosts  -u$users -p$passwds -s mysql -e "${usertest}")

if [[ "$msg" = "" ]];then
    echo "创建失败"
    exit
else
        echo "创建成功"
        echo "$user  $passwd " >>/root/mysqluser.txt
    
fi
}
monitor