猫一个文件本身为什么这个空白文件吗？

Unix: cating a file out to itself - why does this blank the file?

youdao

然而，你的程序将为此无法启动，所以你至少要有一个空白文件。

However, then your application will not start, so you have to have an empty file at least.

youdao

So it's generally called distribution code and whereas for the previous problems that you pretty much started from scratch, blank files you opened up nano and there was nothing there unless you put it there.

它一般被称作分布码，然而,对于之前几乎要从头做起的问题,在空白文件中什么都没有,除非你在里面写入些东西。

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