This function is used ti write Log for all scripting process , personally i used it to track the job completion of my scripts

Write-LogFile.ps1

# This function is used ti write Log for all scripting process
# personally i used it to track the job completion of my scripts
# As using example : Write-LogFile "Test Message"

$Output_Dir = 'C:\Report\'
$Output_LogFile = 'Log.txt'

function Write-LogFile 
{
	[CmdletBinding()]
	param(
		[Parameter()]
		[string] $Message
	)
	
    if((Test-Path $Output_Dir) -eq $false)
    {
        New-Item -ItemType Directory -Path $Output_Dir
    }
    $date = Get-Date
    $Message + ' ; ' + $date | Out-File $Output_Dir$Output_LogFile -Append
}

as test of using : Write-LogFile 'Test Message'