inux终端下解决you need to be root to perform this command
提示操作要获取root权限
you need to be root to perform this command
解决方法：
输入su回车输入密码
忘记密码或未设置密码
执行sudo passwd 进行密码重置设定再输入su获取root权限
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you need to be root to perform this command
输入su回车输入密码
执行sudo passwd 进行密码重置设定再输入su获取root权限