Tri croissant numérique des fichiers d'un répertoire donné et ayant pour nom un nombre*

Hello WCH79,

One of the options would be to do something like this:

1. Create Collection
2. Foreach file in folder create custom PSObject with 2 properties (FileName, Index)
   1. Filename is self explanatory
   2. Index is derived from filename by stripping ".<file extension>" (".txt" in my case)
3. Sort resulting collection by Index and Select -Expand Filename

#List of PSObjects to Store results
$FileCollection=New-Object "System.Collections.Generic.List[PSObject]"

#Foreach file in our folder create PSObject with FileName and Index properties
Get-ChildItem C:\Code\PS\Local\TempDir -Name | Foreach{ $FileCollection.Add($(New-object -TypeName psobject -Property @{'FileName'=$_;"Index"=$([int]($_.split('.')[0]))}))};

#Sort by Index
$FileCollection | Sort-Object -Property Index | Select-Object -ExpandProperty FileName

I am sure there are more elegant and concise solutions for this task but this one also works)

Hope that helps.