脚本查找已安装的软件

Question

We are planning to write a script which will get all the software installed in the Windows system and compare with the list which we have listed and send the result by mail.

I tried a lot and got the below script. The issue is it wont get all the programs installed in the system. Most of the software are missing and also compare is not working. Please help me to improve my script.

for /f "tokens=*" %%i in (D:\BatchScript\ListeProgs.txt) do echo %%i >>D:\BatchScript\newfile.txt
@echo off > D:\BatchScript\installed-programs.csv
regedit /e D:\BatchScript\regexport.txt "HKEY_LOCAL_MACHINE\Software\MicrosoftWindows\CurrentVersion\Uninstall"
find "DisplayName" < D:\BatchScript\regexport.txt > D:\BatchScript\regprogs.txt
for /f "tokens=enter code here2 delims==" %%a in (D:\BatchScript\regprogs.txt) do (
echo %%~a >>D:\BatchScript\installedprogs.txt )
for /f "tokens=*" %%L in (D:\BatchScript\installedprogs.txt) do (
call :sub1 %%L )
goto :eof
:sub1
>> installed-programs.csv echo %1,%2,%3,%4,%5,%6,%7,%8,%9
::== DONE

Answer 1

This is the script that will solve your problem.

After running this code in Powershell you will get a function named Get-InstalledAppsDifferences :

function Get-InstalledAppsDifferences {
    Process {
        Get-WmiObject -Class Win32_Product | Select-Object -Property Name | Sort-Object -Property Name -Unique > c:\LatestList.txt
        IF (Test-Path C:\PreviousList.txt)
        {
            Compare-Object -ReferenceObject (Get-Content C:\latestList.txt) -DifferenceObject (Get-Content C:\PreviousList.txt) > "C:\Diff_$(get-date -f yyyy-MM-dd).txt"
            Remove-Item C:\PreviousList.txt -Force
        }
        Move-Item C:\LatestList.txt C:\PreviousList.txt
    }
}

To run the function inside powershell:

Get-InstalledAppsDifferences

The function generates a list of currently installed programs in C:\\LatestList.txt then looks for a file named C:\\PreviousList.txt , if found generates differences and saves into a file name C:\\Diff_yyyy-mm-dd.txt and removes the previous list.

At the end it renames LatestList.txt to PreviousList.txt for the next use.