Ubuntu 20.04 添加当前用户 Root 权限

sudo chmod +w /etc/sudoers　　　  #修改sudoers权限
sudo vi /etc/sudoers　　　　　　　#打开sudoers

sudoers内容:

#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults    env_reset
Defaults    mail_badpass
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL
xxxx    ALL=(ALL:ALL) ALL　　　　# xxxx改为用户名
# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo    ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d


sudo chmod +w /etc/sudoers　　　  #改回sudoers权限