I want to find the string value from the text file in powershell

Question

I get the installed program list and i want to match the each program to taxt file, in the taxt file i have already list of program name, i want to match each program list to taxt file

Clear
$Error.Clear()

$output = @()

$appname  = Get-Content -path $env:USERPROFILE\Downloads\Installed-Applications.txt

$INSTALLED = Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$INSTALLED += Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$INSTALLED += Get-ItemProperty HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$sysapp = $INSTALLED | ?{ $_.DisplayName -ne $null}

foreach($a in $sysapp)
{
    $b = $a.DisplayName
        

        if($b -in $appname)
        {

            $apps = [PSCustomObject]@{SystemApps=$a.DisplayName; ReuirApps=$applist}
        }
        else
        { 
             $apps = [PSCustomObject]@{SystemApps=$a.DisplayName; ReuirApps=$applist}
        }
       $output += $apps

    
  }
  return $output
 

Answer 1

Hi @chirag darji ,

the variable $applistisn't set/defined in your script. For that reason the value of the variable is always empty.

Please try this, after you fixed the $applistvariable:

Clear-Host
$Error.Clear()
$apps = @()

$appname = Get-Content -Path .\applist.txt

$INSTALLED = Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$INSTALLED += Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$INSTALLED += Get-ItemProperty HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate
$sysapp = $INSTALLED | Where-Object { $_.DisplayName -ne $null }

foreach ($a in $sysapp) {
    $b = $a.DisplayName
        

    if ($b -in $appname) {
        $apps += [PSCustomObject]@{SystemApps = $a.DisplayName; ReuirApps = $applist }
    }
    else { 
        $apps += [PSCustomObject]@{SystemApps = $a.DisplayName; ReuirApps = $applist }
    }
    #$output += $apps
}
return $apps

---

(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten