Hash Table For Loop - ping IP Address for set Duration - powershell

Question

I am stuck on this little project I've been working on.
My out put is blank, not sure how to call the info right. I keep getting on one line in my excel
#Output Hash Table as CSV
$IPAddressHash.GetEnumerator()
I also think I have some missing info here...
$IPAddressHash.Add($IPAddressToPing)
Thanks in advance
#Place holder
$InputText1 = #unused
$InputText2 = "TestSite" ##Popup input box
$DateTime = $(get-date -Format yyyyddmm_hhmmtt)
#Set Output File
$OutputCSVFilePath = "C:\MSP_PingLogs\ $($InputText2) $($DateTime).csv"
#Set Information
$IPAddress = "192.168.0.147"
$SecondsToRun = 5
 
#Hash Table to hold results
$IPAddressHash = #(
$IPAddress)
$outList = foreach ($IPAddress in $IPAddressToPing){
}
#Test Ping
for ($i = 0; $i -lt $SecondsToRun; $i++){
$Pingable = Test-Connection -ComputerName $IPAddressToPing -Count 1 -Quiet
if ($Pingable)
{
Write-Host "Seccess" $($IPAddressToPing) at $(Get-Date), $responseTime -ForegroundColor Green
#$IPAddressHash.($IPAddressToPing.("IPAddressToPing"),1)
}
else {
Write-Host "FAILED PING " $($IPAddressToPing) at $(Get-Date), $responseTime -ForegroundColor Red
#$IPAddressHash.($IPAddressToPing.("IPAddressToPing"),0)
}
Start-Sleep -Seconds 1
    }
$outList = #(
[pscustomobject]#{
Address= $IPAddressToPing
Date= $DateTime
Pingable = $Pingable
}
)
$outList | Export-Csv -path $OutputCSVFilePath -NoTypeInformation
#Show where file is
Write-Host "Output can be found at: $($OutputCSVFilePath)"

Answer 1

here is how i would do what i think you are trying to do ... [grin]
what it does ...
creates a list of systems to ping
replace the entire #region/#endregion stuff with a Get-Content call, or some other way to load your list as plain text system names.
sets the various constants
iterates thru the system list
iterates thru the test count
gets a $False/$True response from Test-Connection
writes the "pingable" info to the screen
creates a [PSCustomObject] with the desired properties
sends that to the $Results collection
displays the collection on screen
saves the collection to a CSV file
here's the code ...
#region >>> fake reading in a text file
# in real life, use Get-Content
$ComputerList = #(
'LocalHost'
'10.0.0.1'
'127.0.0.1'
'BetterNotBeThere'
)
#endregion >>> fake reading in a text file
$TestCount = 3
$DateTimeFormat = 'yyyy-MM-dd HH:mm:ss.ff'
$LogDir = $env:TEMP
$PingLog = 'PingLog_-_{0}.csv' -f (Get-Date).Date.ToString('yyyy-MM-dd')
$FullPingLog = Join-Path -Path $LogDir -ChildPath $PingLog
$Results = foreach ($CL_Item in $ComputerList)
{
foreach ($TC_Item in 1..$TestCount)
{
$Pingable = Test-Connection -ComputerName $CL_Item -Count 1 -Quiet
if ($Pingable)
{
Write-Host ('Ping of {0} was successful.' -f $CL_Item) -ForegroundColor 'Green'
}
else
{
Write-Warning (' Unable to Ping {0} ...' -f $CL_Item)
}
}
[PSCustomObject]#{
ComputerName = $CL_Item
Pingable = $Pingable
TimeStamp = Get-Date -Format $DateTimeFormat
}
}
# show on screen
$Results |
# this forces things to show immediately
# otherwise the "Write-*" calls might interleave with the output stream
Out-Host
# send to CSV
$Results |
Export-Csv -LiteralPath $FullPingLog -NoTypeInformation
output to screen ...
Ping of LocalHost was successful.
Ping of LocalHost was successful.
Ping of LocalHost was successful.
WARNING: Unable to Ping 10.0.0.1 ...
WARNING: Unable to Ping 10.0.0.1 ...
WARNING: Unable to Ping 10.0.0.1 ...
Ping of 127.0.0.1 was successful.
Ping of 127.0.0.1 was successful.
Ping of 127.0.0.1 was successful.
WARNING: Unable to Ping BetterNotBeThere ...
WARNING: Unable to Ping BetterNotBeThere ...
WARNING: Unable to Ping BetterNotBeThere ...
ComputerName Pingable TimeStamp
------------ -------- ---------
LocalHost True 2020-04-10 19:47:33.98
10.0.0.1 False 2020-04-10 19:47:45.62
127.0.0.1 True 2020-04-10 19:47:45.65
BetterNotBeThere False 2020-04-10 19:47:45.68
content of the PingLog_-_2020-04-10.csv file ...
"ComputerName","Pingable","TimeStamp"
"LocalHost","True","2020-04-10 19:47:33.98"
"10.0.0.1","False","2020-04-10 19:47:45.62"
"127.0.0.1","True","2020-04-10 19:47:45.65"
"BetterNotBeThere","False","2020-04-10 19:47:45.68"