如何在一行上运行PowerShell？ [英] How to run PowerShell on one line?

问题描述

根据此答案，PowerShell语句可以用分号分隔。

As per this answer, PowerShell statements can be separated with semicolins.

以下是我正在使用的脚本的摘要（为简化起见，略作编辑）：

Here's a snippet of the script I'm working with (somewhat redacted for simplification):

Add-Type -AssemblyName System.Web;

$server = "http://website.com/index.php";

foreach ($path in [System.IO.Directory]::EnumerateFiles("C:\path\to\dir","*.xml","AllDirectories")) {

  try {
    $oXml = New-Object System.XML.XMLDocument;
    $oXml.Load($path);
    <more commands here>;
  } catch {}

}

这是我的其中之一许多压缩它的尝试：

Here's one of my many attempts at condensing it:

powershell -ExecutionPolicy Bypass -Command "Add-Type -AssemblyName System.Web; $server = 'http://website.com/index.php'; foreach ($path in [System.IO.Directory]::EnumerateFiles("C:\path\to\dir","*.xml","AllDirectories")) { try { $oXml = New-Object System.XML.XMLDocument; $oXml.Load($path); <more commands here>;} catch {}}"

这是cmd返回的错误：

And here are the errors returned by the cmd:

At line:1 char:140
+ ... hp'; foreach ($path in [System.IO.Directory]::EnumerateFiles(C:\path ...
+                                                                  ~
Missing ')' in method call.
At line:1 char:140
+ ... ry]::EnumerateFiles(C:\path\to\dir,*.xml,A ...
+                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unexpected token 'C:\path\to\dir' in expression or statement.
At line:1 char:140
+ ... hp'; foreach ($path in [System.IO.Directory]::EnumerateFiles(C:\path ...
+                                                                  ~
Missing closing ')' after expression part of foreach loop.
At line:1 char:181
+ ... y]::EnumerateFiles(C:\path\to\dir,*.xml,Al ...
+                                                                 ~
Missing argument in parameter list.
At line:1 char:202
+ ... \path\to\dir,*.xml,AllDirectories)) { try  ...
+                                                                 ~
Unexpected token ')' in expression or statement.
At line:1 char:203
+ ... path\to\dir,*.xml,AllDirectories)) { try { ...
+                                                                 ~
Unexpected token ')' in expression or statement.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : MissingEndParenthesisInMethodCall

如何（正确）将以上PowerShell脚本压缩为一行？

How can I (properly) condense the above PowerShell script into one line?

推荐答案

妮可，您在这里有两个选择

Nicole, you have two options here.

首先类似于您现在使用的技术，但是用单引号替换脚本中的任何双引号。将整个脚本用与号和方括号括在双引号中。

First is similar to the technique that you are using now but replace any of the double quotes in the script with single quotes. Wrap the whole script in double quotes with an ampersand and brackets. This would give you something like this...

powershell -ExecutionPolicy Bypass -Command "& {Add-Type -AssemblyName System.Web; $server = 'http://website.com/index.php'; foreach ($path in [System.IO.Directory]::EnumerateFiles('C:\path\to\dir','*.xml','AllDirectories')) { try { $oXml = New-Object System.XML.XMLDocument; $oXml.Load($path); <more commands here>;} catch {}}}"

第二个选择是对脚本进行base64编码，因此您不必担心脚本的复杂程度它。然后使用-EncodedCommand选项启动powershell.exe。

Your second option is to base64 encode the script so you don't have to worry about how complex the script it. Then launch powershell.exe using the -EncodedCommand option.

为此，您首先需要像这样准备base64编码脚本

To do this, you would prepare the base64 encoded script first like this

$Script = @'
Add-Type -AssemblyName System.Web;

$server = "http://website.com/index.php";

foreach ($path in [System.IO.Directory]::EnumerateFiles("C:\path\to\dir","*.xml","AllDirectories")) {

  try {
    $oXml = New-Object System.XML.XMLDocument;
    $oXml.Load($path);
    <more commands here>;
  } catch {}

}
'@

$ByteScript  = [System.Text.Encoding]::Unicode.GetBytes($Script)
[System.Convert]::ToBase64String($ByteScript)

注意您的实际脚本在多行字符串文字之间，并在其周围的不同行上带有@'和'@。该命令的输出是脚本的base64编码的字符串。现在你只要使用你的命令行

Notice that your actual script is between the multiline string literal with @' and '@ on separate lines around it. The output from that command is a base64 encoded string of your script. Now you just use that in your command line

powershell.exe -EncodedCommand "QQBkAGQALQBUAHkAcABlACAALQBBAHMAcwBlAG0AYgBsAHkATgBhAG0AZQAgAFMAeQBzAHQAZQBtAC4AVwBlAGIAOwANAAoADQAKACQAcwBlAHIAdgBlA
HIAIAA9ACAAIgBoAHQAdABwADoALwAvAHcAZQBiAHMAaQB0AGUALgBjAG8AbQAvAGkAbgBkAGUAeAAuAHAAaABwACIAOwANAAoADQAKAGYAbwByAGUAYQ
BjAGgAIAAoACQAcABhAHQAaAAgAGkAbgAgAFsAUwB5AHMAdABlAG0ALgBJAE8ALgBEAGkAcgBlAGMAdABvAHIAeQBdADoAOgBFAG4AdQBtAGUAcgBhAHQ
AZQBGAGkAbABlAHMAKAAiAEMAOgBcAHAAYQB0AGgAXAB0AG8AXABkAGkAcgAiACwAIgAqAC4AeABtAGwAIgAsACIAQQBsAGwARABpAHIAZQBjAHQAbwBy
AGkAZQBzACIAKQApACAAewANAAoADQAKACAAIAB0AHIAeQAgAHsADQAKACAAIAAgACAAJABvAFgAbQBsACAAPQAgAE4AZQB3AC0ATwBiAGoAZQBjAHQAI
ABTAHkAcwB0AGUAbQAuAFgATQBMAC4AWABNAEwARABvAGMAdQBtAGUAbgB0ADsADQAKACAAIAAgACAAJABvAFgAbQBsAC4ATABvAGEAZAAoACQAcABhAH
QAaAApADsADQAKACAAIAAgACAAPABtAG8AcgBlACAAYwBvAG0AbQBhAG4AZABzACAAaABlAHIAZQA+ADsADQAKACAAIAB9ACAAYwBhAHQAYwBoACAAewB
9AA0ACgANAAoAfQA="

唯一的主要缺点是Base64编码的字符串大于原始字符串。

The only main drawback to this would be that Base64 Encoded strings are larger than the original string.

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