The user name of the command line and the user name of the graphical interface are not necessarily the same. You can enter the terminal of the graphical interface to view the user name of the command line. Open the terminal and you can see xxx@yyy at the beginning of each line, where xxx is the user name of the command line and yyy is the device name
Ubuntu command line interface login incorrect problem
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Origin blog.csdn.net/cs18335818140/article/details/113915778
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