ubuntu18给用户添加sudo权限

也就是sudo不用输入密码
1）编辑/etc/sudoers文件
sudo gedit /etc/sudoers

2）添加权限

#
# 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
weig	ALL=(ALL:ALL) ALL

# 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
weig	ALL=(ALL:ALL) NOPASSWD:ALL
# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d