Centos7- wget未找到命令，there are no enabled repos 解决办法

Connecting to 192.168.1.104:22...
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WARNING! The remote SSH server rejected X11 forwarding request.
Last login: Sat Oct 20 10:35:24 2018
[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
-bash: wget: 未找到命令
[root@localhost ~]# sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
sudo: wget：找不到命令
[root@localhost ~]# yum -y install wget
已加载插件：fastestmirror
There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 To enable Red Hat Subscription Management repositories:
     subscription-manager repos --enable <repo>
 To enable custom repositories:
     yum-config-manager --enable <repo>
[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
mv: 无法获取"/etc/yum.repos.d/CentOS-Base.repo" 的文件状态(stat): 没有那个文件或目录
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
mv: 无法获取"/etc/yum.repos.d/CentOS-Base.repo" 的文件状态(stat): 没有那个文件或目录
[root@localhost ~]# sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
sudo: wget：找不到命令
[root@localhost ~]# ^C
[root@localhost ~]# ^C
[root@localhost ~]# wget option url
-bash: wget: 未找到命令
[root@localhost ~]# wget option
-bash: wget: 未找到命令
[root@localhost ~]# sudo yum -y install wget
已加载插件：fastestmirror
There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 To enable Red Hat Subscription Management repositories:
     subscription-manager repos --enable <repo>
 To enable custom repositories:
     yum-config-manager --enable <repo>
[root@localhost ~]# yum clean all
已加载插件：fastestmirror
There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 To enable Red Hat Subscription Management repositories:
     subscription-manager repos --enable <repo>
 To enable custom repositories:
     yum-config-manager --enable <repo>
[root@localhost ~]# rpm -qa yum
yum-3.4.3-158.el7.centos.noarch

问题：反正就是没办法实现源配置的意思吧，我是新人，一头雾水，百度无结果 

解决：CentOS 7 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo 或者 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo 。

https://opsx.alibaba.com/mirror?lang=zh-CN  在阿里的镜像网站里面看漏了一行，这个版本是可以尝试 curl。