Sudo:effective uid is isn't 0, is sudo installed setuid root

The sudo command is required when a normal user needs to use root privileges temporarily, but it is necessary to use ROOT to execute the/usr/bin/sudo binary when executing the sudo command.

If an error occurs sudo:effective UID is not 0, is sudo installed setuid root

Prove that the/usr/bin/sudo file does not have the S permission (the user temporarily has permissions to the file owner when executing the file.) ）

Workaround:

chmod U+s/usr/bin/sudo

After adding permissions to view the file Ll/usr/bin/sudo will see:

---s--x--x 1 root root 123832 Jan 2 18:57/usr/bin/sudo

This makes it possible to use the

Sudo:effective uid is isn't 0, is sudo installed setuid root