Setting variables to control various behaviors.
设置变量以控制各种行为。
Setting variables within a script is fairly simple.
在脚本中设置变量是相当简单的。
You can automate this by setting variables for the start and stop dates and for the command that outputs the number of words.
通过为开始和停止日期以及输出单词数的命令设置相应的变量，您可以为这项任务实现自动化。
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