Centos7 one click compilation to build MySQL script

function install_mysql(){
    MYSQL_BASE=/usr/local/mysql

    cd $TMP_DIR
        file="mysql-5.7.37-linux-glibc2.12-x86_64.tar.gz"
    if [ ! -f $file ]; then
        echo "File not found!"
        yum install -y wget && wget -c wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.37-linux-glibc2.12-x86_64.tar.gz;
        echo " Download complete , Decompressing .......";
        tar -zxvf mysql-5.7.37-linux-glibc2.12-x86_64.tar.gz
        mv mysql-5.7.37-linux-glibc2.12-x86_64 /usr/local/mysql
        cd /usr/local/mysql
        #exit 0
    fi

    echo " Create user group "
    userdel mysql;
    groupadd mysql;
    useradd -r -g mysql mysql;
    mkdir -p  /data/mysql;
    chown mysql:mysql -R /data/mysql;

cd /etc
echo " Write to configuration file "
cat > my.cnf <<EOF
[mysqld]
bind-address=0.0.0.0                    # Bind address to run remote connection 
port=3306                               #Mysql Open port 
user=mysql                              # Database login user 
basedir=/usr/local/mysql                #Mysql The absolute path of the installation 
datadir=/data/mysql                     #Mysql The absolute path of data storage 
socket=/tmp/mysql.sock                  # Socket file 
log-error=/data/mysql/mysql.err         #mysql The path where the generated error log is stored 
pid-file=/data/mysql/mysql.pid          # by mysqld The program specifies a storage process ID The file of 
character_set_server=utf8mb4            # Database character coding 
symbolic-links=0                        # Whether to turn on the link symbol 
explicit_defaults_for_timestamp=true    # database timestamp Columns of type are automatically updated 
EOF

echo " initialization Mysql"
cd /usr/local/mysql/bin/
./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql/ --datadir=/data/mysql/ --user=mysql --initialize
sleep 2s

ehco " start-up mysql"
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
service mysql start
service mysql status
ln -s  /usr/local/mysql/bin/mysql    /usr/bin

echo " obtain mysql Initial password "
PASSWORD=`cat /data/mysql/mysql.err |grep "temporary password"|awk -F"[email protected]: " '{print $2}'`
echo " modify mysql password "
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock --connect-expired-password -uroot -p${PASSWORD} -e "ALTER USER 'root'@'localhost' IDENTIFIED BY '[email protected]';"
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock -uroot [email protected] -e "FLUSH PRIVILEGES;"
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock -uroot [email protected] -e "USE mysql;"
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock -uroot [email protected] -e "UPDATE user SET host = '%' WHERE user = 'root';"
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock -uroot [email protected] -e "FLUSH PRIVILEGES;"
$MYSQL_BASE/bin/mysql --socket=/tmp/mysql.sock -uroot [email protected] -e "exit;"

echo " Restart the database "
service mysql restart;
service mysql status;

echo " Start with a service item "
cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld;
chmod +x /etc/init.d/mysqld;
chkconfig --add mysqld;
chkconfig --list;
firewall-cmd --zone=public --add-port=3306/tcp --permanent;
firewall-cmd --reload;
firewall-cmd --list-all;

echo "=========> MYSQL Information  <========="
echo "  Database version  : 5.7.37           "
echo "  Database password  : [email protected]        "
echo "  Database port  : 3306             "
echo " BASEDIR Catalog : /usr/local/mysql "
echo " DATADIR Catalog : /data/mysql      "
}
install_mysql