Example showing how to get/set scheduled tasks in vCenter/vSphere using PowerCLI

Get-vCenterScheduledTasks.ps1

function Get-vCenterScheduledTask{
    <#
    .SYNOPSIS
        Retrieve vCenter Scheduled Tasks.
    .DESCRIPTION
        Retrieve vCenter Scheduled Tasks.
    .NOTES
        Source:  Automating vSphere Administration
        Authors: Luc Dekens, Arnim van Lieshout, Jonathan Medd,
                 Alan Renouf, Glenn Sizemore
	.EXAMPLE
        Get-vCenterScheduledTask | Select-Object Name,Description,NextRunTime,PrevRunTime,State,Notification
    #> 
 
    $si = Get-View ServiceInstance
    $scheduledTaskManager = Get-View $si.Content.ScheduledTaskManager
    $tasks = $scheduledTaskManager.RetrieveEntityScheduledTask($null)
    $scheduledtasks = foreach ($task in $tasks){(Get-View $task).info}
    $scheduledtasks
}

<#
The above function demonstrates how to "GET" scheduled task information for pretty much EVERYTHING.  It doesn't have a filter.
Might be a new version out there, but here are some other samples to filter or even reconfigure a scheduled task.
 $vm = get-vm nameofVMIminterestedin
 $si = Get-View ServiceInstance
 $scheduledTaskManager = Get-View $si.Content.ScheduledTaskManager
 $tasks = $scheduledTaskManager.RetrieveObjectScheduleTask($vm.extensiondata.moref)  # <-- you could replace $vm.extensiondata.moref w/ any valid object, such as an ESXi host.
 $scheduledtasks = foreach ($task in $tasks){(Get-View $task).info}
 $scheduledtasks
 
Example of how you could reconfigure an existing task using the return from the function above.
$vmsch = Get-vCenterScheduledTask | where {$_.Name -match "something completely idiotic so nothing bad happens by running this without knowing what they are doing"}
Foreach ($task in $vmsch)
{
$spec = New-Object VMware.Vim.ScheduledTaskSpec
$spec.name = $task.name
$spec.description = $task.description
$spec.enabled = $true
$spec.scheduler = New-Object VMware.Vim.OnceTaskScheduler
$spec.scheduler.runAt = $task.scheduler.runAt
$spec.action = New-Object VMware.Vim.MethodAction
$spec.action.name = "CreateSnapshot_Task"
$spec.action.argument = New-Object VMware.Vim.MethodActionArgument[] (4)
$spec.action.argument[0] = New-Object VMware.Vim.MethodActionArgument
$spec.action.argument[0].value = ""
$spec.action.argument[1] = New-Object VMware.Vim.MethodActionArgument
$spec.action.argument[1].value = ""
$spec.action.argument[2] = New-Object VMware.Vim.MethodActionArgument
$spec.action.argument[2].value = $true
$spec.action.argument[3] = New-Object VMware.Vim.MethodActionArgument
$spec.action.argument[3].value = $false
$spec.notification = ""

$_this = Get-View -Id $task.ScheduledTask
$_this.ReconfigureScheduledTask($spec)
}
#>