Convert PowerShell object to use it on a condition - powershell

Question

$version = Get-Module SharePointPnPPowerShellOnline -ListAvailable | Select-Object Version | Format-Table -HideTableHeaders | Out-String
Write-Output $version
With this I can get my PowerShell version, how can I convert it to use it in an if-else condition as an integer for example?

Answer 1

I think you can better use the version as type [Version]. That way you can compare easily enough and/or make use of its properties Major, Minor, etc indivudually
$version = [Version](Get-Module -Name SharePointPnPPowerShellOnline -ListAvailable).Version
if ($version -ge [Version]'3.23.2007.1') {
# do something
}
else {
# do something else
}
Edit
As JosefZ commented, the above does not check for a returned value of $null (not installed).
Nor does it check for the possibility that the cmdlet can return an array of versions in case there are more versions of the same module installed.
To overcome situations like that, you could do:
$module = 'SharePointPnPPowerShellOnline'
$version = [Version](Get-Module -Name $module -ListAvailable).Version |
Sort-Object | Select-Object -Last 1
if ($version) {
Write-Host "Module is installed. Current version $($version.ToString())"
if ($version -ge [Version]'3.23.2007.1') {
# do something (or not because the wanted version or higher is already installed)
}
else {
# do something else, like installing newer module
}
}
else {
Write-Warning "Module '$module' is not installed"
# do something, like installing the module
}