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[SOLVED] Create file with Unique filename If that file exists

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Hi guys! i want to write speedy and very fast code to check if chosen filename exists then add "-1" at end of it and if chosen filename exists again, add "-2" instead of "-1" and check filename until be unique.

  • For Example: I have to write "Filename.txt" in C:\ directory with

then check if "Filename.txt" exists in that directory then rename chosen filename to "Filename-2.txt" and if exists again in directory, rename chosen filename to "Filename-3.txt" and do this work until to find unique number to add end of filename.


====================== SOLUTION by @Subz ======================


Edited by Colduction
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Local $sPathLeft, $sExt, $sPath = "C:\full path.ext"
    If FileExists($sPath) Then
        $sPathLeft = StringLeft($sPath, StringInStr($sPath, ".", 0, -1))
        $sExt = StringTrimLeft($sPath, StringLen($sPathLeft))
        $sPath = $sPathLeft & "_" & @YEAR & @MON & @MDAY & @HOUR & @MIN & @SEC & @MSEC & "_." & $sExt


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Or maybe something like:

#include <File.au3>

ConsoleWrite(_UniqueFileName(@ScriptDir & "\Filename.txt") & @CRLF)

Func _UniqueFileName($_sFilePath)
    If FileExists($_sFilePath) = 0 Then Return $_sFilePath
    Local $sDrive = "", $sDir = "", $sFileName = "", $sExtension = ""
    Local $aPathSplit = _PathSplit($_sFilePath, $sDrive, $sDir, $sFileName, $sExtension)
    Local $i = 1
    While 1
        $_sFilePath = $sDrive & $sDir & $sFileName & "-" & $i & $sExtension
        If FileExists($_sFilePath) = 0 Then Return $_sFilePath
        $i += 1


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3 hours ago, argumentum said:
Local $sPathLeft, $sExt, $sPath = "C:\full path.ext"
    If FileExists($sPath) Then
        $sPathLeft = StringLeft($sPath, StringInStr($sPath, ".", 0, -1))
        $sExt = StringTrimLeft($sPath, StringLen($sPathLeft))
        $sPath = $sPathLeft & "_" & @YEAR & @MON & @MDAY & @HOUR & @MIN & @SEC & @MSEC & "_." & $sExt


Thanks for your code, but it wasn't what i want

Totally thanks for your care.

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1 hour ago, Subz said:

Or maybe something like:

#include <File.au3>

ConsoleWrite(_UniqueFileName(@ScriptDir & "\Filename.txt") & @CRLF)

Func _UniqueFileName($_sFilePath)
    If FileExists($_sFilePath) = 0 Then Return $_sFilePath
    Local $sDrive = "", $sDir = "", $sFileName = "", $sExtension = ""
    Local $aPathSplit = _PathSplit($_sFilePath, $sDrive, $sDir, $sFileName, $sExtension)
    Local $i = 1
    While 1
        $_sFilePath = $sDrive & $sDir & $sFileName & "-" & $i & $sExtension
        If FileExists($_sFilePath) = 0 Then Return $_sFilePath
        $i += 1


Thanks @Subz, it's what i want, it checks until get unique file name❤

I wrote similar to your code but i had a problem with determining address in Wile...WEnd loop.

Thanks for your code (like a fish) :)❤

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  • Colduction changed the title to [SOLVED] Create file with Unique filename If that file exists

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