| 導讀 | sudo命令允許我們以系統管理員運行任何命令或選定的命令。 |
環境
Deepin 15.11
創建一個新用戶
使用adduser創建一個用戶，用戶名爲user01
bob@bob-PC:~$ sudo adduser user01
Adding user `user01' ...
Adding new group `user01' (1001) ...
Adding new user `user01' (1001) with group `user01' ...
Creating home directory `/home/user01' ...
Copying files from `/etc/skel' ...
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Changing the user information for user01
Enter the new value, or press ENTER for the default
Full Name []: user01
Room Number []:
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [Y/n] Y
添加user01這個用戶到sudo組裏面
sudo組的所有成員都在Deepin系統上授予sudo和root訪問權限。因此，要將剛剛創建的user01用戶添加到sudo組，請運行以下命令：
bob@bob-PC:~$ sudo adduser user01 sudo
Adding user `user01' to group `sudo' ...
Adding user user01 to group sudo
Done.
使用id命令查看一下用戶是否添加到sudo組了
bob@bob-PC:~$ id user01
uid=1001(user01) gid=1001(user01) groups=1001(user01),27(sudo)
測試sudo用戶賬號
現在user01用戶使用ssh登錄到本機測試
bob@bob-PC:~$ ssh user01@localhost
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:TKkqZwt9OzPaVSwSkFoLXtAFwnU4aKMG7T8QyF2fPKw.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.
user01@localhost's password:
Welcome to Deepin 15.11 GNU/Linux
* Homepage:https://www.deepin.org/
* Bugreport:https://feedback.deepin.org/feedback/
* Community:https://bbs.deepin.org/
user01@bob-PC:~$
檢驗一下sudo是否好用：
user01@bob-PC:~$ ls -l /root
ls: cannot open directory '/root': Permission denied
user01@bob-PC:~$ sudo ls -l /root
[sudo] password for user01:
total 4
drwxr-xr-x 2 root root 4096 Mar 6 18:05 模板
如何使用sudo執行命令
使用例子：
sudo [option] command
sudo -i
sudo -s
sudo systemctl restart networking
sudo tail -f /var/log/boot.log
如何從sudo組裏刪掉指定的用戶
user01@bob-PC:~$ sudo deluser user01 sudo
Removing user `user01' from group `sudo' ...
Done.
# 查看一下用戶是否不在sudo組裏面了
user01@bob-PC:~$ id user01
uid=1001(user01) gid=1001(user01) groups=1001(user01)
如何刪除一個用戶：
bob@bob-PC:~$ sudo deluser --remove-home user01
Looking for files to backup/remove ...
Removing files ...
Removing user `user01' ...
Warning: group `user01' has no more members.
Done.
總結
sudo命令允許我們以系統管理員運行任何命令或選定的命令。Linux就該這麼學