Flashback to what it took to do math in DOS batch files

While working on a script for an upcoming project, I wanted to test for the presence of various Office versions, including 32-bit and 64-bit components before initiating setup. Here’s one way I found:

SET CURRLOCATION32="C:\Program Files (x86)\MicrosoftOffice\root\Office16"
SET CURRLOCATION64="C:\Program Files\MicrosoftOffice\root\Office16"
SET PREV1LOCATION32="C:\Program Files (x86)\MicrosoftOffice\root\Office15"
SET PREV1LOCATION64="C:\Program Files\MicrosoftOffice\root\Office15"
SET PREV2LOCATION32="C:\Program Files (x86)\MicrosoftOffice\root\Office14"
SET PREV2LOCATION64="C:\Program Files\MicrosoftOffice\root\Office14"

REM Check for 64-bit versions
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Export Credential Manager to PowerShell

If you ever find yourself in a sticky wicket and need to extract usernames and passwords from Credential Manager (usually because you forgot them), you can use this handy-dandy little function from PowerShell:

function ExportCredMan
    # Dump local passwords from credential manager
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Creating an Array with Headers and Columns from a string using [PSCustomObject]

Today, I was updating a script I wrote a while ago, and I wanted to streamline the processing loops once input was received.  This particular script took parameters for:

  • Identity (as an email address or UserPrincipalName)
  • CSV (with either no header or a header of UserPrincipalName)
  • Target environment type (either Active Directory or Office 365/Azure AD, which return a UserPrincipalName property with Get-ADUser or Get-AzureADUser)

I had gone the “easy” route and just done a simple If/Then to see if the Identity parameter had been passed, and if it had, run a separate chunk of code (which made troubleshooting or updates much harder since I had to keep two branches of the code synced when I made updates).… [ Continue reading ]