Linux 下 you need to be root to perform this command

在linux 终端执行某条命令时

提示一下错误

you need to be root to perform this command

是提示要获取root权限
输入su 回车输入密码

[[email protected] ~]$ yum install ssh
Loaded plugins: fastestmirror, langpacks
You need to be root to perform this command.
[[email protected] ~]$ su
Password: 
[[email protected] admin]#

即可解决