错误消息提示文件名被换行符分隔，这就给我们提供了线索。

The clue here is in the error message which shows that the filenames are separated by newline characters.

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在本例中，使用换行字符符号生成了一种“多行”提示符。

In this example, the newline character token is used to generate a kind of "multi-line" prompt.

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注意，名为yaa的分解文件并未使用换行符表示结束，因此当使用cat显示提示之后，会发现提示出现了偏移。

Note that the split file named yaa did not finish with a newline character, so our prompt was offset after we used cat to display it.

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