Centos7 使用yum安装wget时报出以下错误：
[root@192-168-0-1 network-scripts]# yum -y instal wget
Loaded plugins: fastestmirror
No such command: instal. Please use /usr/bin/yum --help
解决办法：
在终端运行：
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
再次运行：yum -y instal wget
[root@192-168-0-1 network-scripts]# yum -y install wget
Loaded plugins: fastestmirror
Determining fastest mirrors* base: mirrors.aliyun.com* extras: mirrors.aliyun.com* updates: mirrors.aliyun.com
base | 3.6 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/4): base/7/x86_64/group_gz | 165 kB 00:00:00
(2/4): extras/7/x86_64/primary_db | 153 kB 00:00:00
(3/4): updates/7/x86_64/primary_db | 5.8 MB 00:00:01
base/7/x86_64/primary_db FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/04efe80d41ea3d94d36294f7107709d1c8f70db11e152d6ef562da344748581a-primary.sqlite.bz2: [Errno 12] Timeout on http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/04efe80d41ea3d94d36294f7107709d1c8f70db11e152d6ef562da344748581a-primary.sqlite.bz2: (28, 'Connection timed out after 30000 milliseconds')
Trying other mirror.
(4/4): base/7/x86_64/primary_db | 6.0 MB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package wget.x86_64 0:1.14-18.el7_6.1 will be installed
--> Finished Dependency ResolutionDependencies Resolved===========================================================================================================================================================================Package Arch Version Repository Size
===========================================================================================================================================================================
Installing:wget x86_64 1.14-18.el7_6.1 base 547 kTransaction Summary
===========================================================================================================================================================================
Install 1 PackageTotal download size: 547 k
Installed size: 2.0 M
Downloading packages:
wget-1.14-18.el7_6.1.x86_64.rpm | 547 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transactionInstalling : wget-1.14-18.el7_6.1.x86_64 1/1 Verifying : wget-1.14-18.el7_6.1.x86_64 1/1 Installed:wget.x86_64 0:1.14-18.el7_6.1 Complete!
执行成功！