这些语言是按命令及执行操作的函数进行编码的。

These languages are coded by command, and functions perform the actions.

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通过使用多个- c参数，您可以构造一组有序的步骤，所有命令将按从左到右的顺序执行。

By using multiple -c arguments, you can construct an ordered set of steps, as all commands are executed left to right.

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sed是基于行的，因此按顺序对每一行执行命令。

Sed is line-based, so the commands are performed on each line in order.

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