Get-content of files in different folders and compare if any difference

Hi,

Have been stuck on this for awhile. I have a script that outputs ipconfig/routes/linkspeed, etc... to a text file in one location. After network changes, we would like to run the script again to get same information and save that text file to another location. Text files are named the same in both location, servername.log.

I would like to get the contents of each text file, and compare the text files with the same filename from the two folder against each other. Any difference in the files would be outputted to another text file. Any help appreciated as i been stuck on this.

script to get info below:

$servernames = get-content "...\serverlist.txt"
ForEach ($servers in $servernames)
{
    Write-Host "checking $servers"
    $logRoot = "...\PreChecks"
    $logFilename = $servers + ".log"
    $logFile = Join-Path $logRoot $logFilename
    $logdate = get-date
    Out-file $logFile
    Write-Output "Date: $logdate" | Out-file $logFile -Append
    Write-Output "Server: $servers" | Out-file $logFile -Append
    $session = New-PSSession -ComputerName $servers
    Write-Output "" | Out-file $logfile -Append
    Write-Output "Route Print" | Out-file $logfile -Append
    #route.exe print | out-file $logfile -Append
    Invoke-Command -Session $session -ScriptBlock {route.exe print} | out-file $logfile -Append
    Write-Output "" | Out-file $logfile -Append
    Write-Output "TraceRoute" | Out-file $logfile -Append
    Invoke-Command -Session $session -ScriptBlock {tracert.exe eq4innas01b} | out-file $logfile -Append
    Write-Output "" | Out-file $logfile -Append
    Write-Output "IPConfig" | Out-file $logfile -Append
    Invoke-Command -Session $session -ScriptBlock {ipconfig.exe /all} | out-file $logfile -Append
    Write-Output "" | Out-file $logfile -Append
    Write-Output "NIC LinkSpeed" | Out-file $logfile -Append
    Invoke-Command -Session $session -ScriptBlock {Get-WmiObject -namespace root\wmi -Class msndis_linkspeed | select-object instancename, ndislinkspeed} | fl | out-file $logfile -Append
    Get-PSSession | Remove-PSSession
}

Thx