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Darkveemon1's avatar
Darkveemon1
Copper Contributor
Nov 08, 2023

Start-Process delay ArgumentList

Hi, I'm using a power shell to run a OpenSSL batch but I have some problems.

 

The basic OpenSSL batch needs to load after it opens and then you can write the command string.

The string works if I do it manually, but in Powershell no.

 

Here is my code:

 

Start-Process -FilePath "$mypath/start.bat" -ArgumentList "/c $myString"

 

I'm afraid the Argument are passed too soon and the OpenSSL isn't loaded yet (the batch opens). Is there a way to open the bat (like Invoke-Item) and pass the arguments after 4 seconds?

 

Thanks in advance for the help

Windows PowerShell
  • LeonPavesic's avatar
    LeonPavesic
    Silver Contributor
    Nov 08, 2023

    Hi Darkveemon1,

    to address this, you can try a combination of Start-Process and Start-Sleep to introduce a delay between launching the batch file and passing the arguments.

     

    # Launch the start.bat file
Start-Process -FilePath "$mypath/start.bat" -Wait

# Wait for 4 seconds
Start-Sleep -Seconds 4

# Pass the command string to the already running OpenSSL process
Invoke-Expression "$myString"

     

     

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    Leon Pavesic
    (LinkedIn)

    • Darkveemon1's avatar
      Darkveemon1
      Copper Contributor
      Nov 08, 2023
      I managed to do it in a more unorthodox way, but it worked
    • Darkveemon1's avatar
      Darkveemon1
      Copper Contributor
      Nov 08, 2023
      Hi, thanks for the reply, unfortunately it is still not working. This time I get an error, it seems it tries to do "Invoke-Item" and launch the code from Powershell and not from the OpenSSL batch and so it fails.

      My code to decrypt uses an "&" and in Powershell it is not managed like that, that's why it should launch it in the batch

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