Pertaining to a user entitled to execute certain system control commands from a terminal. 用于修饰或说明有权从一终端使用某些系统控制命令。
The text we care about may contain configuration data, commands to control or define processes, documents for human consumption, or even tabular data. 我们所关心的包含了结构数据控制命令和定义处理，甚至是制表符。
