Sort lines from a text file

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I have a text file with links from my RapidShare account.

Unfortunatly, they made some changes to the system and now the exported links is arranged somehow randomly.

I want to put some order in those links, by sorting them:

http:/rapidshare.com/files/397406759/intytyut.rar
http:/rapidshare.com/files/387092432/Adsfdfg.rar
http:/rapidshare.com/files/397116908/Algdf.rar
http:/rapidshare.com/files/397111430/Svdffgd.rar
http:/rapidshare.com/files/397111430/79033tyry.rar
http:/rapidshare.com/files/397109320/fgdfg.rar
http:/rapidshare.com/files/397398703/adsasdaasda.rar
http:/rapidshare.com/files/397398703/45000.rar
http:/rapidshare.com/files/397397493/eeeerte.rar
http:/rapidshare.com/files/374707792/Ddsfs.rar

to became:

http:/rapidshare.com/files/397398703/45000.rar
http:/rapidshare.com/files/397111430/79033tyry.rar
http:/rapidshare.com/files/397398703/adsasdaasda.rar
http:/rapidshare.com/files/387092432/Adsfdfg.rar
http:/rapidshare.com/files/397116908/Algdf.rar
http:/rapidshare.com/files/374707792/Ddsfs.rar
http:/rapidshare.com/files/397397493/eeeerte.rar
http:/rapidshare.com/files/397109320/fgdfg.rar
http:/rapidshare.com/files/397406759/intytyut.rar
http:/rapidshare.com/files/397111430/Svdffgd.rar

I have deleted a "/" from "http://" in order to work with the script (made by Smoke'n) founded in an old topic.

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#include <file.au3>
#include <array.au3>

$InFile = @ScriptDir & "\TestIn.txt"
$Outfile = @ScriptDir & "\TestOut.txt"

Dim $avInput[1] = [0], $avSplit[1] = [0], $avSort[1] = [0], $avOutput[1] = [0]
; Read file to array
If _FileReadToArray($InFile, $avInput) Then
    ; Evaluate each line
    For $n = 1 To $avInput[0]
        $avSplit = StringSplit($avInput[$n], "/")
        If $avSplit[0] > 1 Then
            ; Create a sortable index based on fifth field
            _ArrayAdd($avSort, $avSplit[5] & "||" & $n) ; 'Double pipe' delimits index number
        EndIf
    Next
    $avSort[0] = UBound($avSort) - 1
    
    If $avSort[0] > 0 Then
        ; sort the index
        _ArraySort($avSort, 0, 1) ; Ascending, start from [1]
        
        ; Use sorted index to copy lines from $avInput to $avOutput
        For $n = 1 To $avSort[0]
            $avSplit = StringSplit($avSort[$n], "||")
            _ArrayAdd($avOutput, $avInput[$avSplit[$avSplit[0]]])
        Next
        $avOutput[0] = UBound($avOutput) - 1
        
        ; Write to output file
        If _FileWriteFromArray($Outfile, $avOutput, 1) Then
            ; Open file to display results
            Run("notepad.exe " & $Outfile)
            Exit
        Else
            MsgBox(16, "Error", "Error writing to file: " & $Outfile) ; write from [1] to end
        EndIf
    Else
        MsgBox(16, "Error", "No valid lines found to sort.")
    EndIf
Else
    MsgBox(16, "Error", "Error reading file: " & $InFile)
EndIf

The problem with this script is that "eat" 3 lines from the output (TestIn.txt has 5263 lines and TestOut.txt has 5260 lines).

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I've found the problem. The input text file has 3 empty lines.