ubuntn 添加普通用户

useradd yinlele
passwd yinlele

#添加权限
chmod -v u+w /etc/sudoers


vim /etc/sudoers
/Allow root to run
yinlele ALL=(ALL) ALL

#删除写的权限
chmod -v u-w /etc/sudoers

登录后创建

sudo mkdir /home/yinlele