Q的强大力量源于其管道命令程序的设计。
The power of Q comes from its design as a pipeline command program.
如果特定的元组不能满足特殊条件，那么where 子句命令程序废弃这些元组。
The where clause directs the program to discard particular tuples if they do not meet particular conditions.
正如你看到的，很多DOS应用程序在存储中重写DOS命令程序的这一部分。
As you will see, many DOS applications overwrite this section of the DOS command processor in memory.
所以一个图表是被限定为软件的一部分，并且图表的执行是连接到命令程序软件的执行。
So a graph is specified as part of the software and at runtime, executions of the graph are coupled to the execution of the imperative programmed software.
一旦我们开始编写更有趣的程序，你就不得不键入冗长烦人的命令来编译更复杂的程序。
Once we start writing more interesting programs, you would have to type out long annoying commands to just compile more sophisticated programs.
清单4展示了这一命令的程序输出。
参考主题提供了特定的信息，如命令、消息、程序选项或者API。
A reference topic provides specific information, such as a command, message, program option, or API.
命令提供程序提供一个或多个命令。
管理命令提供程序应该为创建和加载命令提供方法。
An admin command provider should provide methods for creating and loading commands.
命令提供程序提供实际的命令实现，并且还为提供程序实现的所有命令指定属性。
The command provider provides the actual command implementation, and also specifies attributes for all the commands that the provider implements.
此JAR文件必须位于需要执行命令的程序的类路径中。
This JAR file must be in the classpath of the program that needs to execute the command.
清单6.info命令列出程序信息。
清单6：info命令列出程序信息。
执行make命令来构建程序；然后执行makeinstall命令安装程序并设置工具。
Execute a make command to build the program; then execute a make install command to install the program and set up the tool.
任务命令提供程序应该为创建和加载类似于管理命令的命令提供方法。
A task command provider should provide methods to create and load commands similar to the admin command.
命令提供程序可以确定将哪些命令放在一个组中。
A command provider can determine which commands to put in a group.
命令提供程序应该实现一些方法，以创建和加载由该提供程序提供的命令。
A command provider should implement methods to create and load the command that is provided by that provider.
打开命令行处理程序窗口并启动DB2。
在调用命令行程序时必须小心。
换句话说，命令提供程序可以包含自已的基本命令，并扩展其他命令。
In other words, a command provider can contain its own base commands and extend other commands.
不过，扩展命令提供程序还可以包括自已的基本命令。
However, an extension command provider can also include base commands of its own.
在清单1中，有一个命令提供程序。
扩展命令提供程序类似于任务命令提供程序，不同之处是扩展命令提供程序只需提供创建和加载步骤的方法。
An extension command provider is similar to a task command provider, except that the extension command provider only needs to provide methods to create and load steps.
这是因为扩展命令提供程序是指通过添加其他步骤扩展基本命令。
This is because the extension command provider is meant to extend a base command by adding additional steps.
通过创建JAR文件并将其放置在类路径中，便从本质上完成了包装命令提供程序、命令和命令定义文件。
Packaging the command provider, commands, and command definition files is essentially done by creating a JAR file and placing it in the classpath.
实际命令行程序使用参数。
命令提供程序将使用这些构造器创建或加载步骤。
The command provider will use these constructors to create or load a step.
此分离为各种命令执行环境中的命令用户和命令提供程序提供了一致的编程模式。
This separation provides a consistent programming model for both command users and command providers across various command execution environments.
此分离为各种命令执行环境中的命令用户和命令提供程序提供了一致的编程模式。
This separation provides a consistent programming model for both command users and command providers across various command execution environments.
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