linux安装redis设置密码并修改配置文件

由于 redis 是用 C 语言开发，安装之前必先确认是否安装 gcc 环境（gcc -v）
如果没有安装，执行以下命令进行安装 yum install -y gcc
1、下载解压
2、切换到redis目录下进行编译及安装到指定目录

1	`make` `&&` `make` `install` `PREFIX=/usr/local/redis`

3、修改安装目录下的redis.conf配置文件

daemonize yes                     #修改为yes，可以后台启动redis
requirepass  1234               #设置redis密码为1234
#bind 127.0.0.1                   #注释掉，允许外界访问
protected-mode no             #改为no，这个是保护机制。

4、启动redis
cd/sur/local/redis/bin/
前台启动： ./redis-server
后台启动：./redis-server redis.conf
5、测试redis
ps -ef | grep redis交互式方式

./redis-cli -h 127.0.0.1 -p 6379 -a密码
127.0.0.1：6379>set hello world
OK
127.0.0.1：6379>get hello
"world"<br>注：复制 /usr/local/redis/bin/ 下面的 redis-cli 到 /usr/local/bin/ 下面，执行以下命令<br>sudo cp usr/local/redis/bin/redis-cli /usr/local/bin/<br>复制完成之后，redis-cli指令可以在任意目录下直接使用啦，然后在任意目录下使用 redis-cli 命令 就可以进入操作redis数据了，是不是很简单

6、redis开机自启动

#!/bin/sh
#
# Simple Redis init.d script conceived to work on Linux systems
# as it does use of the /proc filesystem.
### BEGIN INIT INFO
# Provides:     redis_6379
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Redis data structure server
# Description:          Redis data structure server. See https://redis.io
### END INIT INFO
REDISPORT=6379
#配置自己安装的redis根目录
REDISPATH=/usr/redis/bin
EXEC=${REDISPATH}/redis-server
CLIEXEC=${REDISPATH}/redis-cli
PIDFILE=/var/run/redis_${REDISPORT}.pid
CONF="${REDISPATH}/redis.conf"
case "$1" in
    start)
        if [ -f $PIDFILE ]
        then
                echo "$PIDFILE exists, process is already running or crashed"
        else
                echo "Starting Redis server..."
                $EXEC $CONF
        fi
        ;;
    stop)
        if [ ! -f $PIDFILE ]
        then
                echo "$PIDFILE does not exist, process is not running"
        else
                PID=$(cat $PIDFILE)
                echo "Stopping ..."
                $CLIEXEC -p $REDISPORT shutdown
                while [ -x /proc/${PID} ]
                do
                    echo "Waiting for Redis to shutdown ..."
                    sleep 1
                done
                echo "Redis stopped"
        fi
        ;;
    *)
        echo "Please use start or stop as first argument"
        ;;
esac