Step1:安装sudo
[root@RHEL networking]# yum -y install sudo
Step2:修改/etc/sudoers为需要添加sudo的用户添加权限，本例为networking
[root@RHEL networking]# vi /etc/sudoers
root ALL=(ALL) ALL
networking ALL=(ALL) NOPASSWD:ALL //红色部分为添加内容
Step3:使用sudo +命令执行，如下图：
[networking@RHEL ~]$ sudo yum -y install vsftpd
Last metadata expiration check: 0:00:52 ago on Sun 08 Dec 2019 08:37:40 PM HKT.
Dependencies resolved.
======================================================================================================================================================
Package Arch Version Repository Size
======================================================================================================================================================
Installing:
vsftpd x86_64 3.0.3-28.el8 AppStream 180 k
Transaction Summary
======================================================================================================================================================
Install 1 Package
Total download size: 180 k
Installed size: 359 k
Downloading Packages:
vsftpd-3.0.3-28.el8.x86_64.rpm 125 kB/s | 180 kB 00:01
------------------------------------------------------------------------------------------------------------------------------------------------------
Total 59 kB/s | 180 kB 00:03
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : vsftpd-3.0.3-28.el8.x86_64 1/1
Running scriptlet: vsftpd-3.0.3-28.el8.x86_64 1/1
Verifying : vsftpd-3.0.3-28.el8.x86_64 1/1
Installed:
vsftpd-3.0.3-28.el8.x86_64
Complete!
[networking@RHEL ~]$