counting an array 10 at a time until complete

Question

Hello,

How do you loop through an array 10 at a time until complete? I would like to reboot quite a few servers in a cluster and have come up with the following but I am curious is there is a way get 10, then get the next 10 and the next 10, etc until finished. The cluster can grow later so I am trying to build something a bit more dynamic.

foreach ($server in $pascal[0..9]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[10..19]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[20..29]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[30..39]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[40..49]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[50..59]){write-host $server is rebooting }
Start-Sleep -Seconds 30
foreach ($server in $pascal[60..69]){write-host $server is rebooting }
Start-Sleep -Seconds 30

etc..

Answer 1

You could try this:

$count = 1
  $pascal |
    ForEach-Object{
      Restart-Computer $_
      $Count++
      If ($Count -gt 10){
        Start-Sleep -Seconds 30
        $Count = 1
    }

It doesn't deal with an array, as such, but it does deal with the dynamism you asked for, and it doesn't have to deal with things like having the number of machines in the $pascal array not being a multiple of 10