[root@mysql-17 src]#cat mysql5.7-onekey-install.sh

!/bin/bash

#

Author: longzhengrui

QQ: 573006370

Date: 2022-07-01

FileName： mysql5.7-onekey-install.sh

URL: http://www.longzr.top

Description： The test script

Copyright (C): 2022 All rights reserved

MySQL5.7 Download URL:https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.38-linux-glibc2.12-x86_64.tar.gz

. /etc/init.d/functions
SRC_DIR=pwd
MYSQL=’mysql-5.7.38-linux-glibc2.12-x86_64.tar.gz’
COLOR=’echo -e \E[01;31m’
END=’\E[0m’
MYSQL_ROOT_PASSWORD=123456

check(){
if [ $UID -ne 0 ]; then
action “当前用户不是root,安装失败” false
 exit 1
fi

cd $SRC_DIR
if [ ! -e $MYSQL ];then
$COLOR”请将相关软件放在${SRC_DIR}目录下”$END
exit
elif [ -e /usr/local/mysql ];then
action “数据库已存在，安装失败” false
exit
else
return
fi
}

install_mysql(){
$COLOR”开始安装MYSQL数据库…”$END
yum -y -q install libaio numactl-libs &> /dev/null
cd $SRC_DIR
#tar xf $MYSQL -C /usr/local
MYSQL_DIR=echo $MYSQL | sed -nr 's/^(.*[0-9]).*/\1/p'
ln -s /usr/local/$MYSQL_DIR /usr/local/mysql
chown root:root /usr/local/mysql/ -R
id mysql &> /dev/null || { useradd -s /sbin/nologin -r mysql; action “创建mysql用户”;}
echo “export PATH=/usr/local/mysql/bin/:$PATH” > /etc/profile.d/mysql.sh
. /etc/profile.d/mysql.sh
mkdir /data/mysql -p
cat > /etc/my.cnf <<-EOF
[mysqld]
server-id=1
log-bin
datadir=/data/mysql
socket=/data/mysql/mysql.sock

log-error=/data/mysql/mysql.log
pid-file=/data/mysql/mysql.pid
[client]
socket=/data/mysql/mysql.sock
EOF

   mysqld --initialize --user=mysql --datadir=/data/mysql
   cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
   cd 
   chkconfig --add mysqld
   chkconfig mysqld on
   service mysqld start
   [ $? -ne 0 ] && { $COLOR"数据库启动失败，退出!"$END;exit; }
   MYSQL_OLDPASSWORD=`awk '/A temporary password/{print $NF}' /data/mysql/mysql.log`
   mysqladmin -uroot -p$MYSQL_OLDPASSWORD password $MYSQL_ROOT_PASSWORD &> /dev/null
   action "数据库安装完成"

}
check
install_mysql

[root@mysql-17 src]#cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)