如何使用PowerShell中的参数运行批处理命令

Question

I'm writing up a PowerShell script that will run ElasticSearch's Support Diagnostics tool on demand.

Here is my code: ES.Config.xml - This is an xml file that stores the diagnostic command that I want to run from PowerShell. Its stored as a string (See DEV.Diagnostic.ExecuteCommand:

<DEV>
<Diagnostic FolderPath="" ExecuteCommand="C:\ElasticSearch\support-diagnostics-5.12\diagnostics.bat  --host localhost --port 9200  --user elastic -p"  />

In my powershell script I'm trying to run the command as:

Invoke-Expression -Command $global:DiagnosticCommand

$global:DiagnosticCommand is a global variable that stores the value "C:\\ElasticSearch\\support-diagnostics-5.12\\diagnostics.bat --host localhost --port 9200 --user elastic -p"

I always get an error when I run this command. Any advice would be appreciated.

Answer 1

I can't be sure the context you'd use this in, perhaps a few examples would help below. I've seen two key commandlets which may help you. I put in an example which doesn't need an explicit path, though you can point to the full path with parameters for either ArgumentList or -ScriptBlock {enter your full executable and parameters here}

Start-Process -FilePath C:\Windows\SysWOW64\mstsc.exe -ArgumentList "/?" 
Start-Process -FilePath msiexec.exe -ArgumentList "/?"

Invoke-Command -ScriptBlock {C:\Windows\SysWOW64\mstsc.exe /?}
Invoke-Command -ScriptBlock {msiexec.exe /?}

In your case can you try the following?

Invoke-Command -ScripBlock{
C:\ElasticSearch\support-diagnostics-5.12\diagnostics.bat  --host localhost --port 9200  --user elastic -p}

You can reference the full technet white papers for both commandlets: https://docs.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Management/Start-Process?view=powershell-5.1

https://docs.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Core/Invoke-Command?view=powershell-5.1