How to install MySQL 5.7.29 with one click using shell script

vim install.mysql.sh
 
#!/bin/bash
 
[ -f /etc/init.d/functions ]&& . /etc/init.d/functions
 
###Check if user is root
if [ $UID -ne 0 ]; then
 echo "Error: You must be root to run this script, please use root to install"
 exit 1
fi
 
clear
echo "==========================================================================="
echo "A tool to auto-compile & install MySQL 5.7.29 on Redhat/CentOS Linux"
echo "==========================================================================="
#pkill -9 mysql
#date +%Y-%m-%d-%H-%M
#Uninstall the system's own Mysql
#/bin/rpm -e $(/bin/rpm -qa | grep mysql|xargs) --nodeps
#/bin/rpm -e $(/bin/rpm -qa | grep mariadb|xargs) --nodeps
#/bin/rm -f /etc/my.cnf
 
#set mysql root password
 echo "============================"
  mysqlrootpwd="$1"
  if [ "$1" = "" ]; then
    mysqlrootpwd="rootmysql"
  fi
 
#Which MySQL Version do you want to install?
echo "============================"
 
 isinstallmysql57="5.7.29"
 echo "Install MySQL 5.7.29, Please input y"
 read -p "(Please input y , n):"
# Initialize the installation related content.
 #Delete Old Mysql program
 rpm -qa|grep mysql
 rpm -e mysql
 
 
cat >>/etc/security/limits.conf<<EOF
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
EOF
 
echo "fs.file-max=65535" >> /etc/sysctl.conf
 
echo "=============================Install MySQL 5.7.29=================================="
 
#Backup old my.cnf
#rm -f /etc/my.cnf
if [ -s /etc/my.cnf ]; then
 mv /etc/my.cnf /etc/my.cnf.`date +%Y%m%d%H%M%S`.bak
fi
echo "============================MySQL 5.7.29 installing…………=========================="
 
##define mysql directory configuration variable
Datadir=/data/mysql/data
Binlogdir=/data/mysql/binlog
Logdir=/data/mysql/logs
 
##yum install devel and wget mysql
yum install numactl
/usr/bin/wget -P /tmp http://mirrors.163.com/mysql/Downloads/MySQL-5.7/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz
sleep 2
tar xf /tmp/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
ln -s /usr/local/mysql-5.7.29-linux-glibc2.12-x86_64 /usr/local/mysql
grep mysql /etc/passwd
RETVAL=$?
if [ $RETVAL -ne 0 ];then
 useradd mysql -s /sbin/nologin -M
  action "mysql user added successfully" /bin/true
 else
  action " $(echo -e "\e[31;47;5m mysql user already exists\e[0m")" /bin/false
fi
 
if [ ! -d "$Datadir" ]
then
 mkdir -p /data/mysql/data
fi
 
 
if [ ! -d "$Binlogdir" ]
then
 mkdir -p /data/mysql/binlog
fi
 
if [ ! -d "$Logdir" ]
then
 mkdir -p /data/mysql/logs
fi
 
chown -R mysql:mysql /data/mysql
chown -R mysql:mysql /usr/local/mysql
 
#edit /etc/my.cnf
#SERVERID=`ifconfig eth0 | grep "inet addr" | awk '{ print $2}'| awk -F. '{ print $3$4}'`
cat >>/etc/my.cnf<<EOF
[client]
port = 3306
 
[mysql]
auto-rehash
prompt="\\u@\\h [\\d]>"
#pager="less -i -n -S"
#tee=/opt/mysql/query.log
 
[mysqld]
####: for global
user =mysql       
basedir =/usr/local/mysql/    
datadir = /data/mysql/data 
server_id =2333306      
port =3306       
character_set_server =utf8       
explicit_defaults_for_timestamp = off       
log_timestamps = system      
socket = /tmp/mysql.sock    
read_only = 0        
skip_name_resolve =1        
auto_increment_increment =1        
auto_increment_offset =1        
lower_case_table_names = 1        
secure_file_priv =        
open_files_limit = 65536       
max_connections = 1000       
thread_cache_size = 64       
table_open_cache =81920       
table_definition_cache =4096       
table_open_cache_instances = 64       
max_prepared_stmt_count = 1048576      
 
####: for binlog
binlog_format = row       
log_bin = /data/mysql/binlog/mysql-bin      
binlog_rows_query_log_events = on       
log_slave_updates = on       
expire_logs_days =7        
binlog_cache_size = 65536       
#binlog_checksum =none       
sync_binlog = 1        
slave-preserve-commit-order =ON       
 
####: for error-log
log_error = /data/mysql/logs/error.log      
 
general_log = off       
general_log_file = /data/mysql/logs/general.log     
 
####: for slow query log
slow_query_log = on        
slow_query_log_file = /data/mysql/logs/slow.log      
#log_queries_not_using_indexes = on       
long_query_time = 1.000000      
 
####: for gtid
#gtid_executed_compression_period = 1000       
gtid_mode = on        
enforce_gtid_consistency = on        
 
####: for replication
skip_slave_start = 1        
#master_info_repository =table       
#relay_log_info_repository =table       
slave_parallel_type = logical_clock     
slave_parallel_workers = 4        
#rpl_semi_sync_master_enabled = 1        
#rpl_semi_sync_slave_enabled = 1        
#rpl_semi_sync_master_timeout = 1000       
#plugin_load_add =semisync_master.so   
#plugin_load_add =semisync_slave.so    
binlog_group_commit_sync_delay = 100       
binlog_group_commit_sync_no_delay_count = 10      
 
####: for innodb
default_storage_engine = innodb     
default_tmp_storage_engine = innodb     
innodb_data_file_path = ibdata1:1024M:autoextend 
innodb_temp_data_file_path = ibtmp1:12M:autoextend  
innodb_buffer_pool_filename = ib_buffer_pool   
innodb_log_group_home_dir = /data/mysql/data      
innodb_log_files_in_group = 3       
innodb_log_file_size = 1024M      
innodb_file_per_table = on      
innodb_online_alter_log_max_size = 128M      
innodb_open_files = 65535      
innodb_page_size = 16k      
innodb_thread_concurrency = 0       
innodb_read_io_threads = 4       
innodb_write_io_threads = 4       
innodb_purge_threads = 4       
innodb_page_cleaners = 4   
     # 4 (refresh lru dirty pages)
innodb_print_all_deadlocks = on      
innodb_deadlock_detect = on      
innodb_lock_wait_timeout = 20      
innodb_spin_wait_delay = 128      
innodb_autoinc_lock_mode = 2       
innodb_io_capacity = 200      
innodb_io_capacity_max = 2000      
#--------Persistent Optimizer Statistics
innodb_stats_auto_recalc = on      
innodb_stats_persistent = on      
innodb_stats_persistent_sample_pages = 20      
 
 
innodb_adaptive_hash_index = on      
innodb_change_buffering =all      
innodb_change_buffer_max_size = 25      
innodb_flush_neighbors = 1       
#innodb_flush_method =       
innodb_doublewrite = on      
innodb_log_buffer_size = 128M      
innodb_flush_log_at_timeout = 1       
innodb_flush_log_at_trx_commit = 1       
innodb_buffer_pool_size =4096M      
innodb_buffer_pool_instances = 4
autocommit =1       
#--------innodb scan resistant
innodb_old_blocks_pct = 37      
innodb_old_blocks_time = 1000      
#--------innodb read ahead
innodb_read_ahead_threshold = 56      
innodb_random_read_ahead = OFF      
#--------innodb buffer pool state
innodb_buffer_pool_dump_pct = 25      
innodb_buffer_pool_dump_at_shutdown =ON      
innodb_buffer_pool_load_at_startup =ON      
 
EOF
 
/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data
Pass=$(grep 'A temporary password' /data/mysql/logs/error.log |awk '{print $NF}')
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
chkconfig --add mysqld
chkconfig mysqld on
/etc/init.d/mysqld start
echo "export PATH=$PATH:/usr/local/mysql/bin" > /etc/profile.d/mysql.sh
source /etc/profile.d/mysql.sh
echo "============================MySQL 5.7.29 install completed========================="
ps -eo start,cmd,pid|grep mysql
/usr/local/mysql/bin/mysqladmin -uroot -p"$Pass" password $mysqlrootpwd

[root@localhost ~]# sh install.mysql.sh mysqlroot
[root@localhost ~]# source /etc/profile.d/mysql.sh

[root@localhost ~]# mysql -uroot -p'mysqlroot' -e "select now()"   
mysql: [Warning] Using a password on the command line interface can be insecure.
+---------------------+
| now() |
+---------------------+
| 2020-10-13 16:18:47 |
+---------------------+