今天装完系统发现我的sudo命令不能正常使用,大致情况如下:
- .......
- We trust you have received the usual lecture from the local System
- Administrator. It usually boils down to these three things:
- #1) Respect the privacy of others.
- #2) Think before you type.
- #3) With great power comes great responsibility.
- ......
后来在网上查找了相关资料,具体解决方法如下:
1、用su - 登入root模式
2、改变文件sudoers的权限为可写:chmod 740 /etc/sudoers
3、用vi打开sudoers文件:vi /etc/sudoers
4、在root ALL=(ALL) ALL处回车,另起一行写上:username ALL=(ALL) ALL
5、保存退出
6、把sudoers的权限改为默认的440:chmod 440 /etc/sudoers
7、退出root到普通用户模式,使用sudo测试,通过!
注:如果想要在使用sudo时不输入密码,可以把4处改为:
username ALL=NOPASSWD:ALL
完整样例:
- # /etc/sudoers
- #
- # This file MUST be edited with the 'visudo' command as root.
- #
- # See the man page for details on how to write a sudoers file.
- #
- Defaults env_reset
- # Host alias specification
- # User alias specification
- # Cmnd alias specification
- # User privilege specification
- root ALL=(ALL) ALL
- #tiger ALL=(ALL) ALL
- tiger ALL=NOPASSWD:ALL
- # Uncomment to allow members of group sudo to not need a password
- # (Note that later entries override this, so you might need to move
- # it further down)
- # %sudo ALL=NOPASSWD: ALL