如何在不通过Powershell更改编码的情况下将命令的输出通过管道传输到文件?

问题描述

我想将命令的输出传递给文件:

I want to pipe the output of a command to a file:

PS C:\Temp> create-png > binary.png

我注意到Powershell更改了编码，我可以手动进行编码:

I noticed that Powershell changes the encoding and that I can manually give an encoding:

PS C:\Temp> create-png | Out-File "binary.png" -Encoding OEM

但是，没有RAW编码选项，即使OEM选项也将换行符字节(0xA resp 0xD)更改为Windows换行符字节序列(0xD 0xA)，从而破坏了任何二进制格式.

However there is no RAW encoding option, even the OEM option changes newline bytes (0xA resp 0xD) to the windows newline byte sequence (0xD 0xA) thereby ruining any binary format.

在传递到文件时，如何防止Powershell更改编码?

How can I prevent Powershell from changing the encoding when piping to a file?

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推荐答案

尝试使用set-content:

Try using set-content:

create-png | set-content -path myfile.png -encoding byte

如果您需要有关设置内容的其他信息，请运行

If you need additional info on set-content just run

get-help set-content

您也可以将'sc'用作设置内容的快捷方式.

You can also use 'sc' as a shortcut for set-content.

经过以下测试，会生成可读的PNG:

Tested with the following, produces a readable PNG:

function create-png()
{
    [System.Drawing.Bitmap] $bitmap = new-object 'System.Drawing.Bitmap'([Int32]32,[Int32]32);
    $graphics = [System.Drawing.Graphics]::FromImage($bitmap);
    $graphics.DrawString("TEST",[System.Drawing.SystemFonts]::DefaultFont,[System.Drawing.SystemBrushes]::ActiveCaption,0,0);
    $converter = new-object 'System.Drawing.ImageConverter';
    return([byte[]]($converter.ConvertTo($bitmap, [byte[]])));
}

create-png | set-content -Path 'fromsc.png' -Encoding Byte

如果您要调用非PowerShell可执行文件(如ipconfig)，并且只想从标准输出中捕获字节，请尝试启动过程:

If you are calling out to a non-PowerShell executable like ipconfig and you just want to capture the bytes from Standard Output, try Start-Process:

Start-Process -NoNewWindow -FilePath 'ipconfig' -RedirectStandardOutput 'output.dat'

这篇关于如何在不通过Powershell更改编码的情况下将命令的输出通过管道传输到文件?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！