scriptblock returning object for compare-object - powershell

Question

I'm writing a script to compare 2 samba locations via compare object.
To speed things up i would like to give each location via a thread to a scriptblock where i let the object get made.
After that i'd like the output from the scriptblock as an object to use it in the Compare-Object cmdlet.
What i have sofar:
$nas_smb_share = "\\nas\loc\"
$cs_dest ="\\dest2\loc"
$check_hash = {
Param($loc)
$fso = (dir $loc -Recurse | Where-object{(!$_.psiscontainer) -AND ($_.LastWriteTime -gt (Get-Date).AddHours(-20))} | get-hash -Algorithm MD5)
return $fso
}
$compare_loc =#($nas_smb_share, $cs_dest)
foreach ($check in $compare_loc)
{
$running = #(Get-Job | Where-Object { $_.State -eq 'Running' })
if ($running.Count -le 3)
{
$j = Start-Job -ScriptBlock $check_hash -ArgumentList $check -Name $check
} else
{
$running | Wait-Job
}
Get-Job | Receive-Job
$test = Receive-Job -Name $nas_smb_share -Keep
$test2 = Receive-Job -Name $cs_dest -Keep
}
Get-Job | Wait-Job | Receive-Job
so would still need to add this in somewhere:
(Compare-Object -ReferenceObject $fso -DifferenceObject $fsoBU -Property hash -PassThru).Path | %{if ($_.SideIndicator -eq "=>" ){$result = ("$($_.InputObject)")}}
(dir $cs_dest -Recurse | Where-Object {(!$_.psiscontainer)} | get-hash -Algorithm MD5 | ? {$_.hashstring -match $result})
But the result from test and test2 are hashtable (i think?) and not an object.
Any input would be appreciated on where i went wrong, or how i could do it differently

Answer 1

If you want to return the names of the files in the second location whose checksums don't match, the following editions would help.
$nas_smb_share = "\\nas\loc\"
$cs_dest = "\\dest2\loc"
$compare_loc = #($nas_smb_share, $cs_dest)
$check_hash = {
Param($loc)
return Get-ChildItem $loc -Recurse | Where-object {(!$_.psiscontainer) -AND ($_.LastWriteTime -gt (Get-Date).AddHours(-20))} | Get-FileHash -Algorithm MD5
}
$Jobs = #()
foreach ($check in $compare_loc) {
$Jobs += Start-Job -ScriptBlock $check_hash -ArgumentList $check -Name $check
}
$Jobs | Wait-Job | Out-Null
$test = Receive-Job -Name $nas_smb_share -Keep
$test2 = Receive-Job -Name $cs_dest -Keep
(Compare-Object -ReferenceObject $test -DifferenceObject $test2 -Property Hash -PassThru | Where-Object { $_.SideIndicator -eq "=>" }).Path