windows 将文本文件过滤为新的文本文件
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Filter a text file into a new text file
提问by Strontium_99
Sorry about the dummy question here.
很抱歉这里的虚拟问题。
Under Windows I would like to be able to filter one .txt file into a new one. Filtering all lines that contain a specific string.
在 Windows 下，我希望能够将一个 .txt 文件过滤成一个新文件。过滤包含特定字符串的所有行。
I know this could well be a really easy one, but would really appreciate a few pointers please.
我知道这很可能是一个非常简单的方法，但非常感谢您的指点。
回答by RichieHindle
Use the findstrcommand:
使用findstr命令：
findstr my-string filename > new-file
findstr /?will give you a usage message telling you how to use findstr(including the /Vswitch if you wanted to filter lines outrather than filtering them in.)
findstr /?会给你一个用法消息，告诉你如何使用findstr（包括/V如果你想过滤线开关出来，而不是过滤它们在）。
Or if you're familiar with grepand wishing you had it on Windows, install Cygwin. :-)
或者，如果您熟悉grep并希望在 Windows 上拥有它，请安装Cygwin。:-)
回答by Neil Thompson
Powershell has some neat string comparison features. You can pipe the output to a new file.
Powershell 有一些简洁的字符串比较功能。您可以将输出通过管道传输到新文件。
^^ There are some better links as to how to use Powershell - but I can't find them this minute. If you go the Powershell route there are lots of examples on the internet.
^^ 关于如何使用 Powershell 有一些更好的链接 - 但我现在找不到它们。如果你走 Powershell 路线，互联网上有很多例子。
回答by Ben
There's a logfile filtering utility Logfilter (www.casstor.com), that can easily do this. You can define multiple filter strings as well as use regular expressions in your filters. I think it might be what you're looking for.
有一个日志文件过滤实用程序 Logfilter (www.castor.com)，可以很容易地做到这一点。您可以定义多个过滤器字符串以及在过滤器中使用正则表达式。我想这可能是你要找的。
