CentOS7下執行wget 未找到命令解決辦法

背景：

`[[email protected] /]$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.12.tar.gz

bash: wget: 未找到命令
`
這就尷尬了，遇到問題解決問題！！！

1、解決方案

yum -y install wget

[[email protected] /]# yum -y install wget
已載入外掛：fastestmirror
http://mirrors.aliyun.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; 未知的錯誤"
正在嘗試其它映象。
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; 未知的錯誤"
正在嘗試其它映象。
http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; 未知的錯誤"
正在嘗試其它映象。


 One of the configured repositories failed (CentOS-7 - Base - mirrors.aliyun.com),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Disable the repository, so yum won't use it by default. Yum will then
        just ignore the repository until you permanently enable it again or use
        --enablerepo for temporary usage:

            yum-config-manager --disable base

     4. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=base.skip_if_unavailable=true

failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.
http://mirrors.aliyun.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; 未知的錯誤"
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; 未知的錯誤"
http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; 未知的錯誤"
 

不知道方案行不行，不過出現另一個麻煩！！！

[[email protected] /]# yum clean all
已載入外掛：fastestmirror
正在清理軟體源： base bintray--apache-couchdb-rpm epel extras updates
Cleaning up everything
[[email protected] /]# rpm --rebuilddb
[[email protected] /]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
bash: wget: 未找到命令
[
 
[email protected] /]# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: mirrors.aliyun.com; 未知的錯誤

 

解決不了了，簡單粗暴的辦法！！！！！！！！

重灌

不過以上辦法網上很多人都解決了他們的問題，可能我這個需要最直接的辦法吧。