Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue | Out-Null

function Get-NormalizedString
{
    [cmdletbinding()]
    param
    (
        [Parameter(Mandatory=$true)][string]$String
    )

    ($String.Trim() -replace '\uFF06', '&' ) -replace '\uFF02', '"'
}

function Get-TermPath
{
    [cmdletbinding()]
    param
    (
        [Parameter(Mandatory=$true)][Microsoft.SharePoint.Taxonomy.Term]$Term
    )

    begin
    {
    }
    process
    {
        Write-Verbose -Message "Starting Term: $($Term.Name)"

        foreach( $t in $Term.Terms )
        {
            Write-Verbose -Message "Sub-Term: $($t.Name)"
            Get-TermPath -Term $t
        }

        Write-Verbose -Message "Ending Term: $($Term.Name)"

        New-Object PSCustomObject -Property @{
            Term = Get-NormalizedString -String $Term.Name
            Path = Get-NormalizedString -String $Term.GetPath().Replace(";", " > ")
            TermSet = $Term.TermSet.Name
        }
    }
    end
    {
    }
}


function Export-TermStoreGroup
{
    [cmdletbinding()]
    param
    (
        [Parameter(Mandatory=$true)][Microsoft.SharePoint.SPSite]$Site,
        [Parameter(Mandatory=$true)][string[]]$GroupName
    )

    begin
    {
        $session = New-Object Microsoft.SharePoint.Taxonomy.TaxonomySession($Site)
        $results = @()
    }
    process
    {
        foreach( $termStore in $session.TermStores )
        {
            Write-Verbose -Message "TermStore: $($termStore.Name)"

            foreach( $group in $termStore.Groups | ? { $GroupName -contains $_.Name }  )
            {
                Write-Verbose -Message "`tTermGroup: $($group.Id)"

                foreach( $termSet in $group.TermSets )
                {
                    Write-Verbose -Message "`t`tTermSet: $($termSet.Name)"

                    foreach( $term in $termSet.Terms )
                    {
                        Get-TermPath -Term $term
                    }
                }
            }
        }
    }
    end
    {
        $results
    }
}


Export-TermStoreGroup -Group "TERM GROUP NAME" -Site (Get-SPSite -Limit 1 -WarningAction SilentlyContinue) |
    SORT TermSet, Term, Path |
        SELECT TermSet, Term, Path |
            Export-Csv -Path "C:\_temp\TermGroupExport.csv" -NoTypeInformation