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centos执行命令提示：Loaded plugins: fastestmirror, langpacks You need to be root to perform this command [gogo@localhost ~]$ yum install -y nginx Loaded plugins: fastestmirror, langpacks You need to be root to perform this command. 无权限问题,添加su root权限,即可 [gogo@localhost ~]$ su root Password: [root@localhost lss]#