I'm trying to write a very simple PowerShell script to give me the total number of items (both files and folders) in a given folder (c:\MyFolder). Here's what I've done:
Write-Host ( Get-ChildItem c:\MyFolder ).Count;
The problem is, that if I have 1 or 0 items, the command does not work---it returns nothing.
Any ideas?
You should use Measure-Object to count things. In this case it would look like:
Write-Host ( Get-ChildItem c:\MyFolder | Measure-Object ).Count;
or if that's too long
Write-Host ( dir c:\MyFolder | measure).Count;
and in PowerShell 4.0 use the measure alias instead of mo
Write-Host (dir c:\MyFolder | measure).Count;
Write-Host ( Get-ChildItem c:\MyFolder | Measure-Object ).Count worked for me
measure alias replaces mo starting from PowerShell 4.0If you need to speed up the process (for example counting 30k or more files) then I would go with something like this..
$filepath = "c:\MyFolder"
$filetype = "*.txt"
$file_count = [System.IO.Directory]::GetFiles("$filepath", "$filetype").Count
[System.IO.Directory]::GetFiles("$filepath", "$filetype",1) See here
$r = <regex> and (Get-ChildItem) -match $r | Select FullName, @{name = "FileCount"; expression = {[System.IO.Directory]::GetFiles($_).Count}}
GetFiles mentioned here uses the flawed search method (like Get-ChildItem -Filter does) that will match *.bmp2 when searching for *.bmp. This means searching for *.bmp is effectively using a search pattern of *.bmp* - which can easily cause issues.I finally found this link:
https://blogs.perficient.com/microsoft/2011/06/powershell-count-property-returns-nothing/
Well, it turns out that this is a quirk caused precisely because there was only one file in the directory. Some searching revealed that in this case, PowerShell returns a scalar object instead of an array. This object doesn’t have a count property, so there isn’t anything to retrieve.
The solution -- force PowerShell to return an array with the @ symbol:
Write-Host @( Get-ChildItem c:\MyFolder ).Count;
Only Files
Get-ChildItem D:\ -Recurse -File | Measure-Object | %{$_.Count}
Only Folders
Get-ChildItem D:\ -Recurse -Directory | Measure-Object | %{$_.Count}
Both
Get-ChildItem D:\ -Recurse | Measure-Object | %{$_.Count}
Get-ChildItem D:\ -Recurse -File -Include *.jpg,*.png | Measure-Object | %{$_.Count}
You can also use an alias
(ls).Count
Recursively count files in directories in PowerShell 2.0
ls -rec | ? {$_.mode -match 'd'} | select FullName, @{N='Count';E={(ls $_.FullName | measure).Count}}
In powershell you can to use severals commands, for looking for this commands digit: Get-Alias;
So the cammands the can to use are:
write-host (ls MydirectoryName).Count
or
write-host (dir MydirectoryName).Count
or
write-host (Get-ChildrenItem MydirectoryName).Count
To count the number of a specific filetype in a folder. The example is to count mp3 files on F: drive.
( Get-ChildItme F: -Filter *.mp3 - Recurse | measure ).Count
Tested in 6.2.3, but should work >4.
Write-Host @( Get-ChildItem c:\MyFolder ).Count;. This keeps older versions of Powershell from collapsing/unwrapping the list/array returned byGet-ChildItemwhen there's less than 2 elements in it.