Check first character of each line for a specific value in PowerShell

Question

I am reading in a text file that contains a specific format of numbers. I want to figure out if the first character of the line is a 6 or a 4 and store the entire line in an

Answer 1

Something like this would probably work.

$sixArray = @()
$fourArray = @()

$file = Get-Content .\ThisFile.txt
$file | foreach { 
    if ($_.StartsWith("6"))
    {
        $sixArray += $_
    }

    elseif($_.StartsWith("4"))
    {
        $fourArray += $_
    }
}