Public/Group/Get-DistributionGroupMembershipHash.ps1
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function Get-DistributionGroupMembershipHash { <# .SYNOPSIS Creates a hash table from data returned from Get-DistributionGroupMembership .DESCRIPTION Creates a hash table from data returned from Get-DistributionGroupMembership .PARAMETER Recurse Reveals nested group membership .EXAMPLE "john@contoso.com" | Get-DistributionGroupMembershipHash -Recurse -Verbose .EXAMPLE Get-Content ./primaries.txt | Get-DistributionGroupMembershipHash -Recurse -Verbose #> [CmdletBinding(SupportsShouldProcess = $true)] param( [Parameter(Mandatory = $true, ValueFromPipeline = $True, ValueFromPipelineByPropertyName = $True)] [string[]]$Identity, [Parameter()] [switch]$Recurse ) begin { $GroupHash = @{} } process { foreach ($CurIdentity in $Identity) { Write-Verbose "Looking up memberships for '$CurIdentity'." if ($Recurse) { $GroupHash.$CurIdentity = $CurIdentity | Get-DistributionGroupMembership -Recurse } else { $GroupHash.$CurIdentity = $CurIdentity | Get-DistributionGroupMembership } } } end { $GroupHash } } |