Like in Where-Object doesn't work in PowerShell 2 - powershell

Question

I have a piece of script to do some stuff on VMs. Here it is:
$powered = Get-VM VM-TEST4-* | Where-Object { $_.PowerState -eq 'PoweredOn'
ForEach-Object -InputObject $powered { Shutdown-VMGuest -VM $_ }
# taking snapshots etc etc
# BELOW FAILS
# start up machines in order
Where-Object -Like -Property Name -InputObject $powered -Value "VM-TEST4-DB*" | ForEach-Object { if ($_ -ne $null) { Start-VM -VM $_ } }
sleep -Seconds 180
Where-Object -Like -Property Name -InputObject $powered -Value "VM-TEST4-AUX*" | ForEach-Object { if ($_ -ne $null) { Start-VM -VM $_ } }
sleep -Seconds 180
Where-Object -Like -Property Name -InputObject $powered -Value "VM-TEST4-WEB*" | ForEach-Object { if ($_ -ne $null) { Start-VM -VM $_ } }
sleep -Seconds 180
My problem with this code is that nothing gets started and I only wait. Now the idea behind it was to filter out correct server type so that DB starts earlier than AUX and WEB while $_ -ne $null check protects me if Where-Object returns no results (we have an enviroment with no AUX servers).
Any idea how to make it work properly?

Answer 1

The simplified where-object syntax (including the -like switch parameter) was introduced in 3.0. The -like operator works fine in the standard where-object syntax. You want something like this:
Where-Object {$_.Name -like "VM-TEST4-WEB*"}
EDIT:
The -Like parameter for where-object (which looks like an operator in the simplified syntax) was added in 3.0. The -Like operator which does string comparisons has been in PowerShell since 1.0