blocks|key|366629|text|我不熟悉grep，但是使用Select-String可以做到：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|366630|Get-ChildItem+filename.txt+%7C+Select-String+-Pattern+<regexPattern>|code-block|syntax|javascript|366631|你也可以用Get-Content做到这一点：|366632|(Get-Content+filename.txt)+-match+'pattern'|366633|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I'm not familiar with grep but with Select-String you can do:

<pre><code>Get-ChildItem filename.txt | Select-String -Pattern &lt;regexPattern&gt;
</code></pre>

You can also do that with Get-Content:

<pre><code>(Get-Content filename.txt) -match 'pattern'
</code></pre>

blocks|key|366668|text|Select-String中的-Pattern参数支持模式数组。所以你要找的是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|366669|Get-Content+.\doc.txt+%7C+Select-String+-Pattern+(Get-Content+.\regex.txt)|code-block|syntax|javascript|366670|这将使用regex.txt中的每个正则表达式(每行一个)来搜索文本文件doc.txt|366671|entityMap^0|0|D|F|8|0|0|4|9|Z|7|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|N|$]]

The <code>-Pattern</code> parameter in <code>Select-String</code> supports an array of patterns. So the one you're looking for is:

<pre><code>Get-Content .\doc.txt | Select-String -Pattern (Get-Content .\regex.txt)
</code></pre>

This searches through the textfile <code>doc.txt</code> by using every regex(one per line) in <code>regex.txt</code>

blocks|key|366676|text|也许吧?|type|unstyled|depth|inlineStyleRanges|entityRanges|data|366677|[regex]$regex+=+(get-content+<regex+file>+%7C
foreach+{
++++++++++'(?:{0})'+-f+$_
++++++++})+-join+'%7C'

Get-Content+<filespec>+-ReadCount+10000+%7C
+foreach+{
+++++++++++if+($_+-match+$regex)
+++++++++++++{
++++++++++++++$true
++++++++++++++break
+++++++++++++}
+++++++++}|code-block|syntax|javascript|366678|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Maybe?

<pre><code>[regex]$regex = (get-content &lt;regex file&gt; |
foreach {
 '(?:{0})' -f $_
 }) -join '|'

Get-Content &lt;filespec&gt; -ReadCount 10000 |
 foreach {
 if ($_ -match $regex)
 {
 $true
 break
 }
 }
</code></pre>

blocks|key|148462|text|PS)+new-alias+grep+findstr
PS)+C:\WINDOWS>+ls+%7C+grep+-I+-N+exe

105:-a---++++++++2006-11-02+++++13:34++++++49680+twunk_16.exe
106:-a---++++++++2006-11-02+++++13:34++++++31232+twunk_32.exe
109:-a---++++++++2006-09-18+++++23:43+++++256192+winhelp.exe
110:-a---++++++++2006-11-02+++++10:45+++++++9216+winhlp32.exe

PS)+grep+/?|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|148463|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>PS) new-alias grep findstr
PS) C:\WINDOWS&gt; ls | grep -I -N exe

105:-a--- 2006-11-02 13:34 49680 twunk_16.exe
106:-a--- 2006-11-02 13:34 31232 twunk_32.exe
109:-a--- 2006-09-18 23:43 256192 winhelp.exe
110:-a--- 2006-11-02 10:45 9216 winhlp32.exe

PS) grep /?
</code></pre>

blocks|key|148485|text|所以我在这个链接上找到了一个很好的答案：https://www.thomasmaurer.ch/2011/03/powershell-search-for-string-or-grep-for-powershell/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|148486|但本质上是这样的：|148487|Select-String+-Path+"C:\file\Path\*.txt"+-Pattern+"%5EEnter+REGEX+Here$"|code-block|syntax|javascript|148488|这在PowerShell的一行代码中提供了目录文件搜索(*或者您可以只指定一个文件)和文件内容搜索，非常类似于grep。输出将类似于：|148489|doc.txt:31:+Enter+REGEX+Here
HelloWorld.txt:13:+Enter+REGEX+Here|148490|entityMap|0|LINK|mutability|MUTABLE|url|https://www.thomasmaurer.ch/2011/03/powershell-search-for-string-or-grep-for-powershell/^0|K|2G|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

So I found a pretty good answer at this link:
<a href="https://www.thomasmaurer.ch/2011/03/powershell-search-for-string-or-grep-for-powershell/" rel="noreferrer">https://www.thomasmaurer.ch/2011/03/powershell-search-for-string-or-grep-for-powershell/</a>

But essentially it is:

<pre><code>Select-String -Path "C:\file\Path\*.txt" -Pattern "^Enter REGEX Here$"
</code></pre>

This gives a directory file search (*or you can just specify a file) and a file-content search all in one line of PowerShell, very similar to grep. The output will be similar to:

<pre><code>doc.txt:31: Enter REGEX Here
HelloWorld.txt:13: Enter REGEX Here
</code></pre>

I'm looking for the PowerShell equivalent to <code>grep --file=filename</code>. If you don't know <code>grep</code>, filename is a text file where each line has a regular expression pattern you want to match.

Maybe I'm missing something obvious, but <code>Select-String</code> doesn't seem to have this option.

PowerShell equivalent to grep -f

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在寻找与grep --file=filename等同的PowerShell。如果您不知道grep，那么filename是一个文本文件，其中每一行都有一个您想要匹配的正则表达式模式。也许我遗漏了一些明显的东西，但Select-String似乎没有这个选项。

问相当于grep -f的PowerShell
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