Passing Parameters to powershell script in scheduled task

Question

I am trying to create a scheduled task that will run a Powershell script with 1 parameter - this is on Server 2012 with Powershell v5 installed. So far I have been able to get the task to run, but it doesn't recognize my param value - the value is null in my script that I am calling. Here is what I have to create the scheduled task:

$TicketTime = "9:00pm"
$EmpID = "1234"
$Firstname = "Test"
$Lastname = "User"

$Action = New-ScheduledTaskAction -Execute "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Argument "-ExecutionPolicy ByPass -File C:\Scripts\Term.ps1 -EmpID '$EmpID'"
$Trigger = New-ScheduledTaskTrigger -Once -At "03/29/2016 $TicketTime"
$Task = New-ScheduledTask -Action $Action -Trigger $Trigger -Settings (New-ScheduledTaskSettingsSet)
$Task | Register-ScheduledTask -TaskName "$Firstname $Lastname" -User "myuser" -Password "mypass"

This will execute successfully, but will not recognize the -EmpID parameter. I have also tried -Command instead of -File for the Argument value but I get the same result.

-ExecutionPolicy ByPass -Command "& C:\Scripts\Term.ps1 -EmpID 1234"

Single quotes around the param doesn't seem to do anything either

-ExecutionPolicy ByPass -Command "& C:\Scripts\Term.ps1 -EmpID '1234'"

So far nothing I do will get the param to pass. What am I missing?

Nick · Accepted Answer · 2016-03-30 01:50:20Z

3

Can you try and declare your parameters as positional rather than named:

[CmdletBinding()]
Param (
    [Parameter(Position=0)]
    [string]$Ticket
)

"-ExecutionPolicy ByPass -File C:\Scripts\Term.ps1 '$EmpID'"

Then you can drop the -ParamName and pass it in using position.

answered Mar 30, 2016 at 1:50

Nick

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SwDevMan81 · Accepted Answer · 2022-09-29 12:46:18Z

0

You can use the -File option, you just need to separate out the string:

Change

-ExecutionPolicy ByPass -File "& C:\Scripts\Term.ps1 -EmpID 1234"

to

-ExecutionPolicy ByPass -File "C:\Scripts\Term.ps1" -EmpID "1234"

The full string out look like this:

$Action = New-ScheduledTaskAction -Execute "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Argument "-ExecutionPolicy ByPass -File `"C:\Scripts\Term.ps1`" -EmpID `"$EmpID`""

answered Sep 29, 2022 at 12:46

SwDevMan81

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