shell> yum install tcl -y
shell> tar -xvf redis-6.2.7.tar.gz -C /usr/local/
shell> cd /usr/local/redis-6.2.7/
shell> make
shell> make install
shell> ls /usr/local/bin/
shell> ln -s /usr/local/redis-6.2.7/ /usr/local/redis
shell> cd /usr/local/redis
shell> cd src
shell> ./redis-server
shell> cd /usr/local/redis
shell> cp redis.conf redis.conf.bak_YYYYMMDDHHMM
shell> vi redis.conf
shell> /usr/local/bin/redis-server /usr/local/redis/redis.conf
shell> /usr/local/bin/redis-cli -a YOUR_PASS shutdown
shell> vi /etc/systemd/system/redis.service
shell> systemctl daemon-reload
shell> systemctl enable redis
shell> systemctl start redis