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#!/bin/bash
#Description : MySQL8.4.4 Install Script
#Author : lyx
#Version : 2.0_01
function MySQL_User() {
id mysql >/dev/null 2>&1
if [ "$?" != "0" ]; then
useradd -s /sbin/nologin mysql >/dev/null 2>&1
fi
}
function Create_DIR() {
DIRECTORY=("/home/mysql/data" "/home/mysql/mysqlbase" "/home/mysql/mysqllog")
for i in "${DIRECTORY[@]}"; do
if [ ! -d "${i}" ]; then
mkdir -p "${i}"
fi
done
}
function DOWNLOAD_MYSQL() {
if [ ! -f "/root/mysql-8.4.4-linux-glibc2.28-x86_64.tar.xz" ]; then
echo "Downloading MySQL 8.4.4..."
wget https://dev.mysql.com/get/Downloads/MySQL-8.4/mysql-8.4.4-linux-glibc2.28-x86_64.tar.xz -P /root/
if [ "$?" != "0" ]; then
echo "Failed to download MySQL 8.4.4."
exit 1
fi
else
echo "MySQL 8.4.4 package already exists."
fi
}
function INSTALL() {
chown -R mysql:mysql /home/mysql/{data,mysqlbase,mysqllog}
tar -xvf /root/mysql-8.4.4-linux-glibc2.28-x86_64.tar.xz -C /home/mysql/mysqlbase
mv /home/mysql/mysqlbase/mysql-8.4.4-linux-glibc2.28-x86_64 /home/mysql/mysqlbase/mysql-8.4.4
/home/mysql/mysqlbase/mysql-8.4.4/bin/mysqld --initialize --user=mysql --basedir=/home/mysql/mysqlbase/mysql-8.4.4/ --datadir=/home/mysql/data/
if [ "$?" != "0" ]; then
echo "An error occurs during the installation of the MySQL Database Service."
exit 1
fi
if [ -f /etc/my.cnf ]; then
rm -rf /etc/my.cnf
fi
mv /root/my.cnf /etc/
if [ -f /etc/init.d/mysqld ]; then
rm -rf /etc/init.d/mysqld
fi
cp /home/mysql/mysqlbase/mysql-8.4.4/support-files/mysql.server /etc/init.d/mysqld
if [ ! -f /usr/bin/mysql ]; then
ln -s /home/mysql/mysqlbase/mysql-8.4.4/bin/mysql /usr/bin/mysql
fi
}
function MYSQL_LOG() {
MYSQL_LOG=("/home/mysql/mysqllog/error_log" "/home/mysql/mysqllog/mybinlog")
for j in "${MYSQL_LOG[@]}"; do
if [ ! -d "${j}" ]; then
mkdir -p "${j}"
fi
done
touch /home/mysql/mysqllog/error_log/error.log
touch /home/mysql/mysqllog/mysql-slow.log
chown -R mysql:mysql /home/mysql/mysqllog
}
function MYSQL_START() {
/etc/init.d/mysqld start
sleep 5
if [ "$?" != "0" ]; then
echo "MySQL Service Running Is Error."
exit 1
else
echo "MySQL Service Running Is Successful."
fi
}
function main() {
MySQL_User
Create_DIR
DOWNLOAD_MYSQL
INSTALL
MYSQL_LOG
MYSQL_START
}
main