Ubuntu下使用 source /etc/sudoers 命令报一下错误怎么解决?
WARNING:root:could not open file '/etc/apt/sources.list'
No command 'Defaults' found, did you mean:
Command 'defaults' from package 'gnustep-base-runtime' (universe)
Defaults: command not found
WARNING:root:could not open file '/etc/apt/sources.list'
No command 'Defaults' found, did you mean:
Command 'defaults' from package 'gnustep-base-runtime' (universe)
Defaults: command not found
WARNING:root:could not open file '/etc/apt/sources.list'
No command 'Defaults' found, did you mean:
Command 'defaults' from package 'gnustep-base-runtime' (universe)
Defaults: command not found
-su: /etc/sudoers: line 20: syntax error near unexpected token ('
root ALL=(ALL:ALL) ALL'
-su: /etc/sudoers: line 20: