Sudo

基本解释

The steps that must be run as root are prefixed by "sudo".
下面的步骤必须做为根用户（通过前面用"sudo"）来运行。
Sudo apt-get install imwheel or by using synaptic to find and install it.
亦可用新立得来查找并安装它。
This line allows you to run any command via sudo without typing your password.
这一行使得你可以运行sudo命令而不需要输入密码。
A: If you're not paranoid, you can configure sudo to not ask you for a password.
A:你可以配制sudo不需要询问你密码。
This can be caused by some VNC installations, by running XDarwin through sudo, and probably some other freak accidents.
这可能由于一些VNC安装,或者用sudo运行XDarwin引起,也有可能因为一些其它奇怪的意外。