[user@user ~]$ yum search putty
Loaded plugins: fastestmirror, langpacks
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Determining fastest mirrors
 * base: mirrors.aliyun.com
 * epel: mirrors.bfsu.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
============================== N/S matched: putty ==============================
putty.x86_64 : SSH, Telnet and Rlogin client
 
  Name and summary matches only, use "search all" for everything.
 
[userC@user ~]$ sudo yum install putty.x86_64
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
epel/x86_64/metalink                                     | 6.2 kB     00:00     
 * base: mirrors.aliyun.com
 * epel: mirrors.bfsu.edu.cn
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
base                                                     | 3.6 kB     00:00     
epel                                                     | 4.7 kB     00:00     
extras                                                   | 2.9 kB     00:00     
updates                                                  | 2.9 kB     00:00     
(1/4): epel/x86_64/group_gz                                |  99 kB   00:00     
(2/4): epel/x86_64/updateinfo                              | 1.0 MB   00:01     
(3/4): epel/x86_64/primary_db                                                                                                                                 | 7.0 MB  00:00:04     
(4/4): updates/7/x86_64/primary_db                                                                                                                            |  20 MB  00:00:45     
Resolving Dependencies
--> Running transaction check
---> Package putty.x86_64 0:0.76-1.el7 will be installed
--> Finished Dependency Resolution
 
Dependencies Resolved
 
=====================================================================================================================================================================================
 Package                                   Arch                                       Version                                         Repository                                Size
=====================================================================================================================================================================================
Installing:
 putty                                     x86_64                                     0.76-1.el7                                      epel                                     1.2 M
 
Transaction Summary
=====================================================================================================================================================================================
Install  1 Package
 
Total download size: 1.2 M
Installed size: 6.5 M
Is this ok [y/d/N]: y
Downloading packages:
putty-0.76-1.el7.x86_64.rpm                                                                                                                                   | 1.2 MB  00:00:01     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : putty-0.76-1.el7.x86_64                                                                                                                                           1/1 
  Verifying  : putty-0.76-1.el7.x86_64                                                                                                                                           1/1 
 
Installed:
  putty.x86_64 0:0.76-1.el7                                                                                                                                                          
 
Complete!