Creating scheduled task in remote servers using powershell with varying starttime

Question

I am trying to create the simple reboot task in multiple remote servers with the varying starttime. Here is the powershell script:


   $computers = gc "c:\servers.txt"

   foreach ($computer in $computers)
   {

       icm $computer {SchTasks /Create /SC WEEKLY /D TUE /TN “Reboot Task” /TR “shutdown /r /t 0” /ST 15:00 /RU "SYSTEM"}

   }

For each computer I would like to have the different reboot time. It can be just 5 minutes added to when the loop runs every single time. So 15:00 in first server, 15:05 in second and so on. How can that be done?

score 0 · Answer 1 · answered May 20 '20 at 18:45

$computers = Get-Content "c:\servers.txt"
$timeStart = New-TimeSpan -Hours 15 -Minutes 0
$timeToAdd = New-TimeSpan -Hours  0 -Minutes 5
$sb = {
    param($st)
    if ( SchTasks /Query /TN "Reboot Task" 2>$NULL ) {
        Write-Host SchTasks /Delete /TN "Reboot Task" /F
    }
    Write-Host SchTasks /Create /SC WEEKLY /D TUE /TN "Reboot Task" /TR "shutdown /r /t 0" /ST $st /RU "SYSTEM"
}
foreach ( $computer in $computers ) {
    $timeSTime = $timeStart.ToString( 'hh":"mm')
    $timeStart = $timeStart.Add( $timeToAdd)
    Invoke-Command -ComputerName $computer -ScriptBlock $sb -ArgumentList $timeSTime
}

In the above code snippet:

used [System.TimeSpan] objects for easy updating the start time (works over midnight as well), and
updated start time is passed to the scriptblock as argument (see this answer), and
added an elementary test in the script block (delete the task if already exists) to properly service (supposed) previous attempts, and
schtasks commands are merely displayed for debugging.

Awesome. Thank you JosefZ – bhaskar Khanal May 20 '20 at 21:17 — bhaskar Khanal, May 20 '20 at 21:17

Creating scheduled task in remote servers using powershell with varying starttime

1 Answers1