Create scheduled task in Windows Task Scheduler - part 2

Published on: 9th Dec 2019

Updated on: 16th Jan 2022

Explanation

The following script demo shows how to create daily & weekly tasks.

$task_folder = "\myTasks\"
$ps_script_file = "d:\temp5\test-script.ps1"

<###########################################
this is task #3 - DAILY

###########################################>

$task_name = "myTask3"

## The first line will show err if $task_folder does not exist.
## The second line will not show any error if $task_folder does not exist.
#$exist = Get-ScheduledTask -TaskPath $task_folder | Where-Object {$_.TaskName -eq $task_name}
$exist = Get-ScheduledTask | where {$_.TaskPath -eq "\myTasks\" -and $_.TaskName -eq $task_name }

if (!$exist)  {
    $axn = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass ""$ps_script_file"""

    $sch = New-ScheduledTaskTrigger -Daily -At 5pm

    Register-ScheduledTask -TaskName $task_name  -TaskPath $task_folder -Action $axn -Trigger $sch

    Write-Host "created new task $task_name"
}
else {
    Write-Host "$task_name task already exists"
}

<###########################################>

$task_name = "myTask3-1"
$exist = Get-ScheduledTask | where {$_.TaskPath -eq "\myTasks\" -and $_.TaskName -eq $task_name }

if (!$exist)  {
    $axn = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass ""$ps_script_file"""

    $sch = New-ScheduledTaskTrigger -Daily -At 1am

    $task = Register-ScheduledTask -TaskName $task_name  -TaskPath $task_folder -Action $axn -Trigger $sch

    # run every 30 minutes
    $task.Triggers.Repetition.Interval = "PT30M"

    # for 12 hours. For 1 days, use "P1D".
    $task.Triggers.Repetition.Duration = "PT12H"

    # update the task
    $task | Set-ScheduledTask

    Write-Host "created new task $task_name"
}
else {
    Write-Host "$task_name task already exists"
}

<###########################################
this is task #4 - WEEKLY
###########################################>

$task_name = "myTask4"
$exist = Get-ScheduledTask | where {$_.TaskPath -eq "\myTasks\" -and $_.TaskName -eq $task_name }

if (!$exist)  {        
    $axn = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass ""$ps_script_file"""

    # runs at 6:30pm.
    $sch = New-ScheduledTaskTrigger -Weekly -DaysOfWeek Monday, Friday -At "18:30"

    Register-ScheduledTask -TaskName $task_name  -TaskPath $task_folder -Action $axn -Trigger $sch

    Write-Host "created new task $task_name"
}
else {
    Write-Host "$task_name task already exists"
}

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Author

Lau Hon Wan, software developer.