Reading multiple text file and storing the output to different files

Hi,

I am new to power shell and i am writing a code to read multiple text file and storing the first 5 lines as in different files.

I have written the log but it's not working i am doing something wrong. The script is running but generating empty output file. 

Could any body help please.

$loc = "*.txt"

$pat = "^DRE Weekly"

$result = select-string -pattern $pat -path $loc

if ($result.count -gt 0) {

    $outfile = foreach ($l in $result) {

    $a=get-content D:\MSA_RPT\DRE_Weekly\*.txt -totalcount 5

            $a[(0..2) + (4)]

        }

    }

$outfile | out-file -filepath "D:\test\DRE_version_details.txt"