批处理-在文本文件中搜索指定的字符串，如果找到则将变量设置为1 [英] Batch - Search text file for specified string and if found set variable to 1

问题描述

我似乎找不到答案，所有问题似乎都集中在将文本文件中的内容设置为变量上.我只想查看我提供的字符串是否存在于文本文件中的任何位置. (单独一行，不与其他字符串共享一行)

I can't seem to find a answer for this, all the questions seem focused on setting whats found in the text file as the variable. I just want to see if the string I have provided exists anywhere in the text file. (on its own line, not sharing a line with another string)

一个例子:

％usrname％=鱼

%usrname%= fish

％banfile％=只是其中没有任何内容的文本文件.

%banfile%= is just a text file with NOTHING in it.

for /f "usebackq tokens=*" %%f in ('find /c /i "%usrname%" "%banfile%"') do set banned=1

即使文本文件中什么也没有，它仍然设置％banned％= 1.我希望它仅在文本文件内找到一个或多个字符串"fish"时才设置变量％banned％= 1.

Even with nothing in the text file, it still sets %banned%=1. I want it to set the variable %banned%=1 only if it finds one or more of the string "fish" inside the text file.

我才刚刚开始理解for命令，因此对于大多数人来说，这可能非常简单.感谢您的帮助！

I am just beginning to understand the for command, so for most people this is probably going to be very simple. Thanks for any help!

推荐答案

您不需要为此的for循环:

find /i "%usrname%" "%banfile%" >nul 2>&1&&set /a banned=1 || set /a banned=0
echo %banned%

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