Private/Compare-VersionNumber.ps1
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Function Compare-VersionNumber { <# .SYNOPSIS Compares two version numbers to determine whether one is greater than the other. .DESCRIPTION Compares two version numbers to determine whether one is greater than the other. .NOTES Author: Aaron Parker Twitter: @stealthpuppy .PARAMETER LowVersion The lower version number to compare. .PARAMETER HighVersion The higher version number to compare. #> [CmdletBinding()] [OutputType([Bool])] Param ( [Parameter(Mandatory = $True, Position = 0)] [ValidateNotNull()] [string] $LowVersion, [Parameter(Mandatory = $True, Position = 1)] [ValidateNotNull()] [string] $HighVersion, [Parameter(Mandatory = $False)] [switch] $MatchMinor ) Begin { # Convert parameters to version numbers $low = New-Object -TypeName System.Version -ArgumentList $LowVersion $high = New-Object -TypeName System.Version -ArgumentList $HighVersion } Process { # Compare versions If ($MatchMinor) { If ($high.Major -eq $low.Major) { $result = $high.Minor -gt $low.Minor } Else { # If major version numbers don't match return false $result = $False } } Else { $result = $high -gt $low } } End { # Return result Write-Output $result } } |