安装：
1.获取redis资源
wget http://download.redis.io/releases/redis-4.0.8.tar.gz
2.解压
tar xzvf redis-4.0.8.tar.gz
3.安装
cd redis-4.0.8
make
cd src
make install PREFIX=/usr/local/redis
4.移动配置文件到安装目录下
cd ../
mkdir /usr/local/redis/etc
mv redis.conf /usr/local/redis/etc
5.配置redis为后台启动
vi /usr/local/redis/etc/redis.conf //将daemonize no 改成daemonize yes
6.将redis加入到开机启动
vi /etc/rc.local //在里面添加内容：/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf (意思就是开机调用这段开启redis的命令)
7.开启redis
/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf
常用命令
redis-server /usr/local/redis/etc/redis.conf //启动redis
pkill redis //停止redis
卸载redis：
rm -rf /usr/local/redis //删除安装目录
rm -rf /usr/bin/redis-* //删除所有redis相关命令脚本
rm -rf /root/download/redis-4.0.4 //删除redis解压文件夹