将yum安装时用到的软件包都保存在本地
[root@localhost ~]# sed -i 's/keepcache=0/keepcache=1/g' /etc/yum.conf #开启安装包缓存 [root@localhost ~]# ls /var/cache/yum/x86_64/7/base/packages #查看缓存下来的包
