Special variables declarion and saving output in vb.net

Question

Hi,

I am using following code but stuck with variable declaration %UserName% and saving output in text file with ">"

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
         Dim get_AppxList As New ProcessStartInfo("PowerShell")
        get_AppxList.Arguments = "Get-AppxPackage -ErrorAction SilentlyContinue " > " C:\Users\**%UserName%**\AppsList\InstalledAppxPackagesList.txt "
        Process.Start(get_AppxList)
    End Sub

Any thoughts how to trick with this?

Answer 1

You can do something like =>

Dim sUserPath As String = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)
sUserPath += "\AppsList\InstalledAppxPackagesList.txt"
Dim p As Process = New Process()
p.StartInfo.FileName = "PowerShell.exe"
p.StartInfo.Arguments = "Get-AppxPackage -ErrorAction SilentlyContinue > " + sUserPath
p.StartInfo.UseShellExecute = False
p.StartInfo.CreateNoWindow = True
p.StartInfo.RedirectStandardError = True
p.Start()
p.WaitForExit()
Dim sStdErr As String = p.StandardError.ReadToEnd()
Console.WriteLine("Exit code : {0}", p.ExitCode)
Console.WriteLine("StdErr : {0}", sStdErr)

Answer 2

Hi
Here is one way to get a well formed string with the path I think you want. The effect/results not checked though.

Dim s As String = "Get-AppxPackage -ErrorAction SilentlyContinue > " & IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "AppsList\InstalledAppxPackagesList.txt")

Answer 3

Hi,

Please try $env:UserName instead.

Best Regards，
Ian

============================================

If the Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 4

Hi,

Both options didn't worked for me.

If in CMD/ Command Prompt I am able to run following command successfully but seems like can't translate it to work with VB.
PowerShell Get-AppxPackage -ErrorAction SilentlyContinue > C:\Users\%UserName%\AppsList\InstalledAppxPackagesList.txt

Answer 5

Thanks Castorix31

I tried it but no output were saved or no errors were thrown etc.