Hence, command 7 expands the variable into two arguments and deletes both files.
因此，命令7把此变量展开成两个参数并删除两个文件。
This is achieved by checking whether the corresponding variable has been set and adding the option to the command line.
这是通过检查对应的变量是否已设置并将该选项添加到命令行来实现的。
Simply set the environment variable at the start of the command line and the command you want to run.
只需要在启动命令行的时候设置环境变量以及您希望运行的命令即可。
This is usually specified on the command line, with -classpath, or via the classpath environment variable.
该路径通常是在命令行中用-classpath选项指定的，或者通过classpath环境变量来设定。
When executed from a command line, the program reads the XML content from a file into a string variable.
在命令行中执行的时候，该程序将XML内容从文件读入一个字符串变量。
To reference a given DB2 instance from a command line interface, use the environment variable DB2INSTANCE.
要想从命令行接口引用给定的DB2实例，应该使用环境变量DB2INSTANCE。
Open a command prompt and ensure that the path variable includes the path of your VSS installation directory.
打开一个命令行并确保PATH变量包含了您的VSS安装目录的路径。
The hidden variable on the form (Figure 20) is used to persist this value between different command actions on the page.
表格上的隐藏变量(图20）用于在页面上不同命令动作间保持其值。
The code will need to handle populating that variable with the document supplied to the program through the command line.
代码需要使用由命令行传递给程序的文档来填充该变量。
Users can also accept a value for a variable during runtime by using the ACCEPT command as shown in the example below.
用户还可以使用ACCEPT在运行时期间接受一个变量值，如下例所示。
To enable AIO on LINUX, you must set the DB2 registry variable DB2LINUXAIO (using the command shown below) and restart DB2.
为了在LINUX启用AIO，必须设置DB 2注册表变量db2linuxaio(使用下面显示的命令)并重新启动DB2。
To customize the command prompt, you will need to set a new DB2 UDB registry variable called DB2_CLPPROMPT.
要定义命令提示符，则需要设置新的名为DB 2 _ CLPPROMPT的DB 2UDB注册变量。
On many UNIX-like systems, the command-line values and environment variable values can be viewed by other users, so they aren't a good way to privately send data between processes.
在很多类unix系统上，命令行值和环境可以被其他用户看到，所以不是在进程间保密地发送数据的好办法。
The phrase \$somevar escapes the dollar sign, avoiding interpretation of the variable in the command where the prompt is set. Instead, the interpretation occurs whenever the prompt is drawn.
$somevar 可以对美元符号进行转义，避免在设置提示符的命令中对该变量进行解释，而是在显示提示符时对其进行解释。
Progname is a global char* variable to save the name by which the command was invoked, for display in error messages.
Progname是保存名称（命令就是通过该名称被调用）的全局char*变量，作为在错误消息中显示之用。
Tcsh provides the built-in variable correct, which helps you correct invalid command usage.
tcsh提供内置变量correct，这有助于纠正无效的命令用法。
Other, typically more complicated variations of the dialog command both set the shell status variable and generate other results.
另外，通常更为复杂的dialog命令变体同时设置shell状态变量并生成其他结果。
The environment variable CLASSPATH and any class path specified on the command line is ignored by the JVM if the -jar option is used.
如果使用了-jar选项，那么环境变量CLASSPATH和在命令行中指定的所有类路径都被j VM所忽略。
print_r — This command simply prints any variable, including its structure.
print_r —此命令只简单地打印所有变量，包括其结构。
Once constructed, the command is executed and the response captured to the $Resp variable.
一旦构造好，命令行将被执行，响应将被捕获到 $Resp 变量。
For example, you can access parameters passed to scripts on the command line using the sys.argv variable.
例如，可以使用sys. argv变量在命令行中访问传递给脚本的参数。
Your home directory is stored in the variable $HOME. That means that the cd command without parameters is equivalent to typing cd $HOME (see Listing 12).
主目录保存在变量 $HOME 中，这意味着不带参数的cd命令相当于运行 cd $HOME（参见清单 12）。
Note that this variable is in uppercase letters, unlike the PWD command.
注意，与pwd命令不同，这个变量是大写。
When a command is executed, the shell must read the user's PATH environment variable to find the executable.
当执行一个命令时，shell必须读取用户的PATH环境变量来查找可执行文件。
Historically, many attacks exploited the way the command shell handled the IFS environment variable, but most of today's shells (including GNU bash) have been modified to make IFS harder to exploit.
历史上，很多攻击利用的是命令shell处理IFS环境变量的方法，但是当今大部分的shell(包括GNUbash)已经经过了修改，从而使IFS难以利用。
The command is then executed and the output captured in the $Resp variable (Listing 10).
然后，命令执行，$Resp变量捕获输出（见清单10）。
The exec command can be used to initialize the variable with a value.
通过使用 exec命令，可以用值来初始化变量。
More details regarding the usage of the vmo command for configuring large pages and LDR_CONTROL variable can be found in the Resources section.
在参考资料 中可以找到关于使用vmo命令配置大页面和 LDR_CONTROL变量的更多信息。
If you want to run the server on a different port, specify -port XXX at the end of the command, replacing the variable XXX with your chosen port.
如果希望在另一个端口上运行服务器，在命令的结尾处指定-portxxx，用选定的端口代替变量xxx。
If you want to run the server on a different port, specify -port XXX at the end of the command, replacing the variable XXX with your chosen port.
如果希望在另一个端口上运行服务器，在命令的结尾处指定-portxxx，用选定的端口代替变量xxx。
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