Powershell 比较两个文件并生成第三个文件 [英] Powershell compare two files and generate third file

问题描述

我有 2 个文件 - file1.txt 和 file2.txt.我想用powershell比较这两个文件并生成第三个文件(file3.txt)，其中包含file1.txt中的所有行减去file2.txt中的行

I have 2 files - file1.txt and file2.txt. I want to compare these two files with powershell and generate third file (file3.txt) which containst all the lines from file1.txt minus lines in file2.txt

以下是文件 1 和 2 的示例:

Here is an example of how the files 1 and 2 looks like:

file1.txt 内容

file1.txt content

Line1
Line2
Line3
Line4

file2.txt 内容

file2.txt content

Line2
Line4

我希望 file3.txt 看起来像这样

And I want file3.txt to look like this

Line1
Line3

你能想出一些方法来做到这一点吗?

Can you think of some way how to do this?

推荐答案

这个方案简单得离谱...

This one is ridiculously easy...

Compare-Object (Get-Content File1.txt) -DifferenceObject (Get-Content File2.txt) -PassThru | Out-File File3.txt

仅此而已.

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