# get source and destination file name
$fileName = Read-Host -Prompt 'Source file name'
$content = Get-Content $fileName
$newFileName = Read-Host -Prompt 'New file name'

# get line number
$start = Read-Host -Prompt 'Starting line number'
$end = Read-Host -Prompt 'Ending line number'


# write target lines from source file into destination file
Get-Content -Path $fileName | Select-Object -Index ($start..$end) | Foreach-Object {
  Add-Content "./$newFileName" $PSItem
}