#mkdir /software/
#mkdir /data/mysql

--------------------
#cd /software/
#xz -d mysql-8.0.19-linux-glibc2.12-x86_64.tar.xz
#tar -xvf mysql-8.0.19-linux-glibc2.12-x86_64.tar

#mv /software/mysql-8.0.19-linux-glibc2.12-x86_64/ /software/mysql

#groupadd mysql

#useradd -r -g mysql mysql

#chown -R mysql:mysql /software/mysql/
#chown -R mysql:mysql /data/mysql/
#chown -R mysql /software/mysql/
#chown -R mysql /data/mysql

#cd /software/mysql/bin
#./mysqld --user=mysql --basedir=/software/mysql --datadir=/data/mysql --initialize

if test -z "$basedir"
then
basedir=/usr/local/mysql
bindir=/usr/local/mysql/bin
if test -z "$datadir"
then
datadir=/usr/local/mysql/data
fi
sbindir=/usr/local/mysql/bin
libexecdir=/usr/local/mysql/bin
else
bindir="$basedir/bin"
if test -z "$datadir"
then
datadir="$basedir/data"
fi
sbindir="$basedir/sbin"
libexecdir="$basedir/libexec"
fi

if test -z "$basedir"
then
basedir=/software/mysql
bindir=/software/mysql/bin
if test -z "$datadir"
then
datadir=/data/mysql
fi
sbindir=/software/mysql/bin
libexecdir=/software/mysql/bin
else
bindir="$basedir/bin"
if test -z "$datadir"
then
datadir="$basedir/data"
fi
sbindir="$basedir/sbin"
libexecdir="$basedir/libexec"
fi

#cp /software/mysql/support-files/mysql.server /etc/init.d/mysqld

#chmod 755 /etc/init.d/mysqld

[client]
no-beep
socket =/software/mysql/mysql.sock
# pipe
# socket=0.0
port=3306
[mysql]
#原文的utf8指向UTF8MB3，后續版本要改為UTF8MB4，一步到位吧
default-character-set=UTF8MB4
[mysqld]
basedir=/software/mysql
datadir=/data/mysql
port=3306
pid-file=/software/mysql/mysqld.pid
#skip-grant-tables
skip-name-resolve
socket = /software/mysql/mysql.sock
character-set-server=utf8
default-storage-engine=INNODB
explicit_defaults_for_timestamp = true
# Server Id.
server-id=1
max_connections=2000
#query_cache_size在8.0版本已經移除，故注釋
#query_cache_size=0
table_open_cache=2000
tmp_table_size=246M
thread_cache_size=300
#限定用于每個數據庫線程的棧大小。默認設置足以滿足大多數應用
thread_stack = 192k
key_buffer_size=512M
read_buffer_size=4M
read_rnd_buffer_size=32M
innodb_data_home_dir = /data/mysql
innodb_flush_log_at_trx_commit=0
innodb_log_buffer_size=16M
innodb_buffer_pool_size=256M
innodb_log_file_size=128M
innodb_thread_concurrency=128
innodb_autoextend_increment=1000
innodb_buffer_pool_instances=8
innodb_concurrency_tickets=5000
innodb_old_blocks_time=1000
innodb_open_files=300
innodb_stats_on_metadata=0
innodb_file_per_table=1
innodb_checksum_algorithm=0
back_log=80
flush_time=0
join_buffer_size=128M
max_allowed_packet=1024M
max_connect_errors=2000
open_files_limit=4161
#query_cache_type在8.0版本已經移除，故注釋
#query_cache_type=0
sort_buffer_size=32M
table_definition_cache=1400
binlog_row_event_max_size=8K
sync_master_info=10000
sync_relay_log=10000
sync_relay_log_info=10000
#批量插入數據緩存大小，可以有效提高插入效率，默認為8M
bulk_insert_buffer_size = 64M
interactive_timeout = 120
wait_timeout = 120
log-bin-trust-function-creators=1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d

#cd /usr/local/mysql
#ln -s /sofware/mysql/bin/myslqd mysqld

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'newpassword';

mysql -uroot -p
 Enter password: 輸入新設的密碼newpassword>
---------------------------------------------------------------------------------------------------------------------------
#/software/mysql/bin/mysql -u root –p

>mysql set password=password('root');
>mysql grant all privileges on *.* to root@'%' identified by 'root';
>mysql flush privileges;