This script tells me how many times, in the last X amount of days, our workstations have been logged on.
My code works fine when I write the number of days inside (Get-Date).AddDays(-$days). For example:
$logins=(Invoke-Command -ComputerName $workstation -ScriptBlock { Get-EventLog System -Source Microsoft-Windows-Winlogon -InstanceId 7001 -After (Get-Date).AddDays(**-90**)} -ErrorAction SilentlyContinue| Select-Object -Property Index, @{label="DayOfYear";expression={$_.TimeWritten.DayOfYear}} | Select-Object DayOfYear -ExpandProperty DayOfYear | sort -Unique).count
Write-Host $logins " - " $workstation
It outputs:
# of logins in the last 90 days.
52 - PC1
73 - PC2
64 - PC3
etc
However when I try to use Read-Host so the user can decide the number of days:
$days=Read-Host "How many days of history?"
The code returns:
0 - PC1
0 - PC2
0 - PC3
etc
I tried converting the Read-Host output to integer:
$days=Read-Host "How many days of history?"
$number_of_days=[Convert]::ToInt32($days)
$logins=(Invoke-Command -ComputerName $workstation -ScriptBlock { Get-EventLog System -Source Microsoft-Windows-Winlogon -InstanceId 7001 -After (Get-Date).AddDays(**-$number_of_days**)}...
AND
[int]$days=Read-Host "How many days of history?"
$logins=(Invoke-Command -ComputerName $workstation -ScriptBlock { Get-EventLog System -Source Microsoft-Windows-Winlogon -InstanceId 7001 -After (Get-Date).AddDays(**-$days**)}...
However I still get the same results.
# of logins in the last 90 days.
0 - PC1
0 - PC2
0 - PC3
etc
I was wondering if someone could help me figuring out what I am missing. Thank you
