Snapshot Category
Cmdlets are usually implemented around resource operations. The four basic operations are CREATE, READ, UPDATE and DELETE. This set of operations is known as CRUD. Most of the cmdlets support CRUD which are respectively cmdlets that start with the New/Get/Set/Remove cmdlet verbs but they also may have additional operations
Step 1: Retrieve a object by running a Get command
# Retrieves the snapshot named "Before ServicePack2" of the VM virtual machine.
Get-Snapshot -VM VM -Name 'Before ServicePack 2'
Step 2 : Run commands from the CRUD group
# Creates a new snapshot of the VM virtual machine named BeforePatch.
New-Snapshot -VM VM -Name BeforePatch
# Sets the name and the description of the snapshot in the $snapshot variable.
Set-Snapshot -Snapshot $snapshot -Name BeforePatch -Description "Before windows update"
# Removes the snapshot in the $snapshot variable and its children.
Remove-Snapshot -Snapshot $snapshot1 -RemoveChildren