<#*,:&cls
@echo off
pushd "%~dp0"
Powershell -NoProfile -ExecutionPolicy RemoteSigned -Command ". ([ScriptBlock]::Create((Get-Content -LiteralPath \"%~0\" -ReadCount 0 | Out-String ))) "
popd
pause
exit /b
#>
$hash = @{ }
Split-Path -Path (Convert-Path -Path *_*) -Leaf | ForEach-Object {
  if ((Test-Path -LiteralPath $_ -PathType Leaf) -and ($_ -match '^([^_]+_)(\d+)')) {
    if (-not $hash.ContainsKey($Matches[1])) {
      $hash.Add($Matches[1], (New-Object 'System.Collections.Generic.List[int]'))
    }
    $hash.Item($Matches[1]).Add($Matches[2] -as [int])
  }
}
$hash.GetEnumerator() | ForEach-Object {
  $iList = $_.Value
  $iList.Sort()
  $ii = $iList.Item($iList.Count - 1) -as [int]
  for ($i = 1; $i -le $ii; $i++) {
    if (-not $iList.Contains($i)) {
      '{0}{1}' -f $_.Key, ([string]$i).PadLeft(3, [char]'0')
    }
  }
} | Set-Content .\abc.txt 
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