PowerShell-Toolmaking

1.0.0.15

Chapters/interlude-changing-your-approach.md/snippets.ps1

# consider this:
$UserNames = Get-ADUser -Filter * -SearchBase `
"OU=NAME_OF_OU_WITH_USERS3,OU=NAME_OF_OU_WITH_USERS2,
OU=NAME_OF_OU_WITH_USERS1,DC=DOMAIN_NAME,DC=COUNTRY_CODE" | 
Select -ExpandProperty samaccountname

$UserRegex = ($UserNames | ForEach{[RegEx]::Escape($_)}) -join "|"

$myArray = (Get-ChildItem -Path "\\file2\Felles\Home\*" -Directory | 
Where{$_.Name -notmatch $UserRegex})

#$myArray

foreach ($mapper in $myArray) {
    #Param ($mapper = $(Throw "no folder name specified"))

    # calculate folder size and recurse as needed
    $size = 0
    Foreach ($file in $(ls $mapper -recurse)){
    If (-not ($file.psiscontainer)) {
        $size += $file.length
        }
    }

    # return the value and go back to caller
    echo $size
}




# our take (you can run this)
function Get-FolderSize {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$True,
                   ValueFromPipeline=$True,
                   ValueFromPipelineByPropertyName=$True)]
        [string[]]$Path
    )
    BEGIN {}
    PROCESS {
        ForEach ($folder in $path) {
            Write-Verbose "Checking $folder"
            if (Test-Path -Path $folder) {
                Write-Verbose " + Path exists"
                $params = @{'Path'=$folder
                            'Recurse'=$true
                            'File'=$true}
                $measure = Get-ChildItem @params |
                           Measure-Object -Property Length -Sum
                [pscustomobject]@{'Path'=$folder
                                  'Files'=$measure.count
                                  'Bytes'=$measure.sum}
            } else {
                Write-Verbose " - Path does not exist"
                [pscustomobject]@{'Path'=$folder
                                  'Files'=0
                                  'Bytes'=0}
            } #if folder exists
        } #foreach
    } #PROCESS
    END {}
} #function



# second function
function Get-UserHomeFolderInfo {
    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$True)]
        [string]$HomeRootPath
    )
    BEGIN {}
    PROCESS {
        Write-Verbose "Enumerating $HomeRootPath"
        $params = @{'Path'=$HomeRootPath
                    'Directory'=$True}
        ForEach ($folder in (Get-ChildItem @params)) {
            
            Write-Verbose "Checking $($folder.name)"
            $params = @{'Identity'=$folder.name
                        'ErrorAction'='SilentlyContinue'}
            $user = Get-ADUser @params

            if ($user) {
                Write-Verbose " + User exists"
                $result = Get-FolderSize -Path $folder.fullname
                [pscustomobject]@{'User'=$folder.name
                                  'Path'=$folder.fullname
                                  'Files'=$result.files
                                  'Bytes'=$result.bytes
                                  'Status'='OK'}
            } else {
                Write-Verbose " - User does not exist"
                [pscustomobject]@{'User'=$folder.name
                                  'Path'=$folder.fullname
                                  'Files'=0
                                  'Bytes'=0
                                  'Status'="Orphan"}
            } #if user exists

        } #foreach
    } #PROCESS
    END {}
}