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

我有一个包含电子邮件地址的大文件，我想计算一下这个文件中有多少.如何使用 Windows 的命令行来做到这一点?

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 ?

我已经尝试过了，但它只是打印匹配的行.(顺便说一句: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

使用您所拥有的，您可以通过 find 管道传输结果.我经常看到这样的东西.

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"

因此，您正在计算 findstr 命令中没有垃圾字符串的行.有点黑客，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，上述方法有效，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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