## 7.6 yum更换国内源

**恢复备份：**

```

[root@localhost yum.repos.d]# cp ../yum.repos.d.bak/* .

```

**下载yum源：**

```

[root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo

```

**改名：**

```

[root@localhost yum.repos.d]# mv CentOS7-Base-163.repo ./CentOS-Base.repo

```

**清除缓存：**

```

[root@localhost yum.repos.d]# yum clean all

```

**重新生成缓存：**

```

[root@localhost yum.repos.d]# yum install zsh

```

***

## 7.7 yum下载rpm包

**安装扩展源：**

```

[root@localhost ~]# yum install -y epel-release

```

**使用yum下载rpm包：**

**仅下载不安装：**

```

[root@localhost yum.repos.d]# yum install zsh --downloadonly

```

**查询rpm包是否安装：**

```

[root@localhost yum.repos.d]# rpm -q zsh

```

**指定下载路径：**

```

[root@localhost yum.repos.d]# yum install zsh --downloadonly --downloaddir=/tmp/

```

**将已安装的软件下载到指定目录：**

```

[root@localhost yum.repos.d]# yum reinstall vim-enhanced --downloadonly --downloaddir=/tmp/

```

***

## 7.8 源码包安装(上)

> 将源码包放在 /usr/local/src目录中

**下载apache:**

```

[root@localhost src]# wget http://mirrors.cnnic.cn/apache/httpd/httpd-2.2.32.tar.gz

```

**解压：**

```

[root@localhost src]# tar -zxvf httpd-2.2.32.tar.gz

```

**安装apache:**

```

[root@localhost httpd-2.2.32]# ./configure --prefix=/usr/local/apache2

```

**查看上一条命令运行是否正确：**

```

[root@localhost httpd-2.2.32]# echo $?

1

```

* 非0表示上一条命令运行错误

> checking for gcc... no表示gcc编译器不存在

```

[root@localhost httpd-2.2.32]# make

```

**扩展:**

> 1. 配置yum源优先级 http://www.aminglinux.com/bbs/thread-7168-1-1.html

> 2. 把源码包打包成rpm包 http://www.linuxidc.com/Linux/2012-09/70096.htm

## 7.9 源码包安装(下)

```

[root@localhost httpd-2.2.32]# make install

```