PowerShell hash table and output to text files - powershell

Question

I have written a script with the help of #Ansgar. Below is the code for the script. The script checks for Ping, RDP, Remote Registry and WMI checks for a remote computer. The server names are entered in a text file servernames.txt Once the script is exeecuted, the servers that are UP are recorded in a text file named Online.txt and the servers which are DOWN are recorded in Offline.txt The format for recording is below:
ONLINE.TXT
<servername>
PING : SUCCESS
RDP : SUCCESS
Remote Registry : SUCCESS
WMI : SUCCESS
OFFLINE.TXT
<servername>
PING : SUCCESS
RDP : FAIL
Remote Registry : SUCCESS
WMI : SUCCESS
This is the script that I have till now:
#Text file to pick the server names. Path is hard coded to c:\temp\serverlist.txt
$servers = Get-Content "C:\temp\serverlist.txt"
ForEach ($server in $servers)
{
Write-Host `n
Write-Host $server
Write-Host `n
#PING
$ping = Test-Connection -ComputerName $server -Quiet -Count 1
#RDP
$rdp = Test-NetConnection -ComputerName $server -CommonTCPPort RDP -InformationLevel Quiet
#REMOTE REGISTRY
$regkey = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey ([Microsoft.Win32.RegistryHive]::LocalMachine,$server)
$ref = $regkey.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")
#WMI
$wmi = Get-WmiObject -Query "Select * from Win32_PingStatus where Address = '$server'"
$state_noun = #{
$true = 'SUCCESS'
$false = 'FAIL'
}
$state_verb = #{
$true = 'SUCCEEDED'
$false = 'FAILED'
}
$result = #"
PING : $($state_noun[$ping])
RDP : $($state_noun[$rdp])
Remote Registry : $($state_noun[[bool]$ref])
WMI : $($state_noun[[bool]$wmi])
"#
}
How can I output the servers and their results to the text files (online.txt and offline.txt)? Thank you in advance.

Answer 1

Use -and to calculate the overall result of your 4 checks:
$ping -and $rdp -and [bool]$ref -and [bool]$wmi
The -and operator returns true only if both operands are true, so the above statement only becomes true when all 4 checks succeeded.
Write to one or the other output file depending on the outcome of the boolean operation:
if ($ping -and $rdp -and [bool]$ref -and [bool]$wmi) {
$result | Out-File 'C:\path\to\online.txt' -Append
} else {
$result | Out-File 'C:\path\to\offline.txt' -Append
}

Answer 2

Or you could use the -Contains operator as previously suggested and just do something like:
If(#($state_noun[$ping],$state_noun[$rdp],$state_noun[[bool]$ref],$state_noun[[bool]$wmi]) -contains "FAIL"){
$result | Out-File 'C:\path\to\online.txt' -Append
}else{
$result | Out-File 'C:\path\to\offline.txt' -Append
}
Though I would personally use Ansgar Wiechers's solution. I just posted this as a proof of concept (I think that's the right term).