$pass = ConvertTo-SecureString ("Paper123" + [char]33 + "@#") -AsPlainText -Force
$cred = New-Object PSCredential("INTRANET\sysadmin", $pass)

$filterScript = 'Get-Content C:\Shares\test\scripts\sync-from-nas.log | Select-String -Pattern "Starting sync|Max age: 86400|Sync complete|No new DAT|Found.*DAT|PULL=|ambiguous|Copied to station|Copied report" | Select-Object -Last 40 | ForEach-Object { $_.Line } | Out-File C:\Shares\test\scripts\tail-grep.txt -Encoding utf8'

[System.IO.File]::WriteAllText("\\192.168.0.6\C$\Shares\test\scripts\filter-log.ps1", $filterScript)
$r = Invoke-WmiMethod -ComputerName 192.168.0.6 -Credential $cred -Class Win32_Process -Name Create -ArgumentList "powershell -NoProfile -ExecutionPolicy Bypass -File C:\Shares\test\scripts\filter-log.ps1"
Write-Output "PID: $($r.ProcessId)"
Start-Sleep -Seconds 20
try {
    Write-Output ([System.IO.File]::ReadAllText("\\192.168.0.6\C$\Shares\test\scripts\tail-grep.txt"))
} catch {
    Write-Output "File not ready: $_"
}