Automating VMware vSphere VM Power Operations with PowerShell

# Load the VMware PowerCLI module
Import-Module VMware.PowerCLI

# Connect to the vCenter server
$vcServer = "your_vcenter_server"
$credential = Get-Credential
Connect-VIServer -Server $vcServer -Credential $credential

# Get a list of all VMs
$vmList = Get-VM
$vmList | Select-Object Name, PowerState

# Power on a specific VM
$vmToPowerOn = Get-VM -Name "Your_VM_Name"
if ($vmToPowerOn -and $vmToPowerOn.PowerState -ne "PoweredOn") {
    Start-VM -VM $vmToPowerOn
    Write-Host "Started VM:" $vmToPowerOn.Name
} else {
    Write-Host "VM is already powered on or does not exist."
}

# Power off a specific VM
$vmToPowerOff = Get-VM -Name "Your_VM_Name"
if ($vmToPowerOff -and $vmToPowerOff.PowerState -eq "PoweredOn") {
    Stop-VM -VM $vmToPowerOff -Confirm:$false
    Write-Host "Stopped VM:" $vmToPowerOff.Name
} else {
    Write-Host "VM is already powered off or does not exist."
}

# Check the power state of the VM
$vmToCheck = Get-VM -Name "Your_VM_Name"
if ($vmToCheck) {
    Write-Host "The power state of VM" $vmToCheck.Name "is:" $vmToCheck.PowerState
} else {
    Write-Host "VM does not exist."
}