Hyper-V CLI

List all VMs:
Get-VM

List powered on VMs:
Get-VM | where {$_.State -eq 'Running'}

List powered off VMs:
Get-VM | where {$_.State -eq 'Off'}

Start selected VM:
Start-VM -Name 2virtual machine name"

Start all powered off VMs:
Get-VM | where {$_.State -eq 'Off'} | Start-VM

Shutdown all running VMs:
Get-VM | where {$_.State -eq 'Running'} | Stop-VM

Create snapshot of selected VM:
Get-VM -Name <"VM Name" | Checkpoint-VM -SnapshotName "Snapshot name"

Create a new VM:
 $VMName = "VMNAME"

 $VM = @{
     Name = $VMName
     MemoryStartupBytes = 2147483648
     Generation = 2
     NewVHDPath = "C:\Virtual Machines\$VMName\$VMName.vhdx"
     NewVHDSizeBytes = 53687091200
     BootDevice = "VHD"
     Path = "C:\Virtual Machines\$VMName"
     SwitchName = (Get-VMSwitch).Name
 }

 New-VM @VM

Remove VM with prompt:
Remove-VM "VM Name"

Export Singular VM:
Export-VM -Name "VM name" -Path "Destination"

Export all VM:
Get-VM | Export-VM -Path "Destination"

Import VM and keep location:
Import-VM -Path ""Path""VM ID".vmcx"

Import and copy files to Host VM path.
C:\> Import-VM -Path ""Path""VM ID".vmcx" -Copy -GenerateNewId

List information about a vhd:
Get-VHD -Path "Source Folder Path and File"
 
List information about vhd(s) attatched to VM:
Get-VM -VMName "VM Name" | Select-Object -Property VMId | Get-VHD

Create dynamic VHD:
New-VHD -Path ""Destination""filename".vhd[x]" or .vhd"c:\Base.vhdx -SizeBytes 10GB

Create a static vhd:
New-VHD -Path ""Path""filename".vhd[x] -Fixed -SourceDisk 2 -SizeBytes 1TB

Convert VHD to VHDX:
Convert-VHD -Path "Source Folder Path and File" -DestinationPath "Destination Folder Path and File"
 
Exspand VHD to 1TB:
Resize-VHD -Path ""path""filename".vhd" -SizeBytes 1099511627776

change vhdx size:
Resize-VHD -Path ""path""filename".vhdx" -SizeBytes 20GB

Shrink vhdx:
Resize-VHD -Path ""path""filename".vhdx"x -ToMinimumSize