如何使用Windows命令行查找文件中字符串的出现次数？ [英] How to find the number of occurrences of a string in file using windows command line?

问题描述

我有一个巨大的文件与电子邮件地址，我想计算他们有多少在这个文件。我如何使用Windows的命令行？

I have a huge files with e-mail addresses and I would like to count how many of them are in this file. How can I do that using Windows' command line ?

我试过了，但它只打印匹配的线。 （btw：所有电子邮件都包含在一行中）

I have tried this but it just prints the matching lines. (btw : all e-mails are contained in one line)

findstr / c：@mail.txt

推荐答案

使用你所拥有的，你可以通过 find 。我已经看到过这样使用的东西。

Using what you have, you could pipe the results through a find. I've seen something like this used from time to time.

findstr /c:"@" mail.txt | find /c /v "GarbageStringDefNotInYourResults"

c> findstr 命令中没有垃圾字符串。种类的黑客，但它可以为你工作。或者，只需在您关心的字符串上使用 find / c 即可。最后，您提到每行一个地址，因此在这种情况下，上面的工作，但每行多个地址，这会中断。

So you are counting the lines resulting from your findstr command that do not have the garbage string in it. Kind of a hack, but it could work for you. Alternatively, just use the find /c on the string you do care about being there. Lastly, you mentioned one address per line, so in this case the above works, but multiple addresses per line and this breaks.

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