How to display the total size of a file type?

Question

PowerShell

The script should output the 10 largest file types by extension, sorted by total size in descending order. It also takes 2 parameters, 1st for the search directory, 2nd for the file output.

Script:

# Присваивание имени выводимому файлу 
$args[1] += "\hard_mem_use.txt"
# Получаем список путей всех файлов, начиная с пути $args[0]
Get-ChildItem $args[0] -r|`
WHERE { -NOT $_.PSIsContainer } |`
Group Extension  -NoElement |`
# Сортировка по убыванию размера файла, разрешая использование нескольких значений 
Sort-Object -descending -property length  |`
# Фильтруем вывод информации, первые 10 имён и их вес в Мб. 
Select-Object -first 10 name, @{Name="Mb";Expression={[Math]::round($_.length / 1MB, 2)}}|`
# Вывод файла по пути $args[1]
Out-File -FilePath $args[1]

notepad.exe $args[1]

At the moment it does not show the total size:

Name     Mb
----     --
.exe      0
.zip      0
.docx     0
.log      0
.txt      0
.torrent  0
.sys      0
.rtf      0
.ini      0
.lng      0

Can you tell me where I made a mistake or maybe I forgot something?

Answer 1

Because sort-object has nothing to sort. You previously grouped by extension. And outside you now have objects that have two properties - count, name. if not -noelement would still be group. And you are trying to do something with length.
you need to leave the Group property and sum the Length over it
ps back quote after the "pipe" is not needed, PS and so after it allows you to wrap the line

Answer 2

param(
    $directoryName = "c:\windows",
    $outFileName = "d:\tmp\out.csv"
)

Get-ChildItem $directoryName -File | Group-Object {$_.Extension} | ForEach-Object {
    [PSCustomObject]@{
        Name = $_.Name
        Sum = ($_.Group.Length | Measure-Object -Sum).Sum
    }
} | Sort-Object -Property "Sum" -Descending | Tee-Object -Variable "list" | Export-Csv $outFileName

$list

Answer 3

please increase CacheSize configuration parameter

here he writes what he needs