[root@VM-4-6-centos redis]# find  /  -name  redis-server
/root/redis-6.2.6/src/redis-server
/usr/local/redis/bin/redis-server

^C
[root@VM-4-6-centos redis]# whereis redis
redis: /usr/local/redis
[root@VM-4-6-centos redis]# /usr/local/redis/bin/redis-server /usr/local/redis/redis.conf 
[root@VM-4-6-centos redis]#