PowerShell 与 PowerShell ISE

Question

I have a problem of running my PowerShell script in Task Scheduler. I created script in PowerShell ISE and it works fine.

But when I run it by PowerShell it reports some mistakes.

Do you have any ideas why this can happen?

I have tried to create a single line file with

powershell_ise.exe -File D:\script.ps1

or

powershell.exe -File D:\script.ps1

But neither of it works. I have checked policy, but I have it unrestricted.

I have tried to run

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NonInteractive -Command d:\Script.ps1

in PowerShell ISE and it works fine.

When I run it in PowerShell it shows error:

The term '▬' is not recognized as the name of a cmdlet, function, script file,
or operable program. Check the spelling of the name, or if a path was included,
verify that the path is correct and try again.
At line:1 char:1

$datetime = Get-Date -f yyyMMdd

$strFileName = "c:\test\BS_" + $datetime + ".txt"

if (Test-Path $strFileName) {
  exit
} else {
  exit
}

...

Answer 1

The get-date cmdlet doesn't have and alias for -format

Please use the below syntax

$datetime = Get-Date -format "yyyyMMdd"

Answer 2

The problem was with

 $datetime = Get-date -f yyyymmdd

whehe I used wrong "-". Thank you all for advices