A simple diff function for two files in powershell.

PowershellDiff.ps1

param($VersionOne, $VersionTwo)

$result = compare-object (get-content $VersionOne) (get-content $VersionTwo) -IncludeEqual

Write-Host "+ " $VersionOne -ForegroundColor DarkGray 
Write-Host "- " $VersionTwo -ForegroundColor DarkGray 
Write-Host "=======================================" -ForegroundColor DarkGray

$result | foreach {
    if($_.SideIndicator -eq "==")
    {
        Write-Host "  " $_.InputObject -ForegroundColor DarkGray 
    }
    elseif($_.SideIndicator -eq "<=")
    {
        Write-Host "- " $_.InputObject -ForegroundColor Red
    }
    elseif($_.SideIndicator -eq "=>")
    {
        Write-Host "+ " $_.InputObject -ForegroundColor Green
    }
}