powershell results - return rows with values only-CodePudding

i have this powershell that i am looking to tweak so it only gives me lines with a snapshot and timestamp. At the moment its giving me all virtual machines, with or without a snapshot. I just want to filter it so i get VMs with a snapshot only and associated timestamp, i guess which ever will work to filter for VMs with a snapshot

Get-VM | Format-Table -AutoSize VMName, @{Name="TotalSnapshots";Expression={(Get-VMSnapshot -VM $_ | Measure-Object).Count}},@{Name="TimeStamp";Expression={(Get-VMSnapshot -VM $_ | Select-Object CreationTime).CreationTime}}

CodePudding user response：

Use your calculated properties with Select-Object instead of Format-Table, which allows you to filter by these properties via Where-Object:

Get-VM | 
  Select-Object VMName, @{Name="TotalSnapshots";Expression={(Get-VMSnapshot -VM $_ | Measure-Object).Count}},@{Name="TimeStamp";Expression={(Get-VMSnapshot -VM $_).CreationTime}} |
  Where-Object TotalSnapshots -gt 0 |
  Format-Table -AutoSize

Note that Select-Object constructs and outputs data objects, whereas Format-Table, as all Format-* cmdlets do, outputs objects that are formatting instructions, which are only meaningful to PowerShell's for-display output-formatting system - see this answer for more information.