sudo 命令不可用

1. 当前用户不在 admin group

   adduser ronnie admin

2. /ect/sudoers 文件权限错误

   chmod 440 /etc/sudoers

3. /ect/sudoers 内容错误 ```bash

   使用 visudo 命令编辑 /etc/sudoers

   visudo /etc/sudoers

👇正确的内容👇

#

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 secure_path=”/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin”

Host alias specification

User alias specification

Cmnd alias specification

User privilege specification

root 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

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

includedir /etc/sudoers.d

```