variable-name value的意思|示意

Create a shell variable called cc whose value is the full path file name to the GCC binary.

创建一个shell变量cc，它的值是gcc二进制代码的完整路径文件名。

In this case, there's a single variable, named people, and the value is the array containing three items, each of which is a person record with a first name, a last name, and an e-mail address.

在这个示例中，只有一个名为 people的变量，值是包含三个条目的数组，每个条目是一个人的记录，其中包含名、姓和电子邮件地址。

To set a variable from the command line when invoking the rundsjob executable file, you must pass the -v flag along with the variable name and value that you want to set it to.

在激发rundsjob可执行文件时，为了从命令行设置一个变量，您必须通过带有变量名以及想要设置值的- v标记。

To make this method a little easier, I wrap the access to the variable in a second function that takes a configuration key name and a default value, as shown below.

为使这个方法更加简单，将对变量的访问封装在第二个函数中，该函数使用配置键名及一个缺省值作为参数，如下所示。

Otherwise, the shell interprets the trailing text as part of your variable name — and most likely returns a null value.

否则，Shell将把尾随文本解释为变量名称的一部分——并且很可能返回一个空值。

If the var attribute is specified, then a scoped variable with the indicated name will be created and assigned the current value of the index for each pass through the iteration.

如果指定了var属性，那么将会创建一个带有指定名称的并限定了作用域的变量，并将每次迭代的当前索引值赋给该变量。