[Linux] linux command to add user with root privileges

Command

useradd -ou 0 -g 0 username

Sample Command

useradd -ou 0 -g 0 johnwong

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Remarks

If you want set the password of this user, use this command:

Command

passwd username

Sample Command

passwd johnwong

Reference:
http://askubuntu.com/questions/410244/a-command-to-list-all-users-and-how-to-add-delete-modify-users