将长度属性添加到选择

Question

Newbie here...everyone's help and input is greatly appreciated!

30,000' view: Create Report on "stale data" that can/should be deleted from network.

Step 1. Gather list of folders that begin with either "ST_" or "EDDS1" from a group of servers that includes the FullName, Name & Length values.

$Path = 
"\\server1.domain.com\b\sqlbackups",
"\\server1.domain.com\b\sqlbackups",
"\\server1.domain.com\b\sqlbackups";

$BackupFolders = @(gci $Path -filter "ST_*" | ?{ $_.PSIsContainer}) | Select FullName,Name,Length
$BackupFolders += @(gci $Path -filter "EDDS1*" | ?{ $_.PSIsContainer}) | Select-Object FullName Name, Length

$BackupFolders | Export-CSV C:\BackupFolders.csv

This pulls in a column for length but there are no values listed in that colum...

Step 2. Compare this list to SQL table. If value exists in reference doc (Step 1) & in a specific colum in SQL, then look at "status tab" in SQL. If the SQL table "status tab" indicates "inactive", output FullName, Name, Length from Step1 and Client, Project Name from SQL table into csv.

$sqlConnection = New-Object System.Data.SqlClient.SqlConnection
$sqlConnection.ConnectionString = "Server=sqlserver\sharename;Database=database;Integrated Security=True"
$sqlConnection.Open()

$sqlCommand = New-Object System.Data.SqlClient.SqlCommand
$sqlCommand.CommandText = "SELECT * FROM [Table].[dbo].[Matters] WHERE [Status] NOT LIKE 'Active%'"
$sqlCommand.Connection = $sqlConnection
$sqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$sqlAdapter.SelectCommand = $sqlCommand
$Dataset = New-Object System.Data.DataSet
$sqlAdapter.Fill($Dataset)
$sqlConnection.Close()

$MatterStatus = @"
C:\MatterStatus.csv
"@

$Dataset.Tables[0] | Select Client,Project,MatterStatus | Export-Csv c:\MatterStatus.csv

Question1 - How do I get the Length Attribute to be listed in my csv created from Step1?

Question2 - Am I on the right track here? Same as Step1, the last value did not propagate...MatterStatus in my csv is blank.

Any suggestions/hints are much appreciated!

Answer 1

According to http://technet.microsoft.com/en-us/library/ff730945.aspx , you can use gci | Measure-Object gci | Measure-Object or the Scripting.FileSystemObject COM object to get the folder size.

Solution 1 (Pure Powershell):

Function Get-ItemSize($Path) {
    (Get-ChildItem -Recurse -Path:$Path | Measure-Object -Property:Length -Sum | Select -ExpandProperty:Sum) / 1MB
}

Solution 2 (COM Object):

$objFSO = New-Object -com  Scripting.FileSystemObject
Function Get-ItemSize($Path) {
    ($objFSO.GetFolder($Path).Size) / 1MB
}

Combined with calculated properties, you can replace

... | Select FullName, Name, Length

With:

... | Select FullName, Name, @{Name='Length'; @Expression= {"{0:N2} MB" -f (Get-ItemSize($_) })

They provide identical output:

PS> Get-item 'D:\Temp' | Select FullName, Name, @{ Name='Length'; Expression = { "{0:N2} MB" -f (Get-ItemSize($_)) } }

FullName                                 Name                                     Length                                 
--------                                 ----                                     ------                                 
D:\Temp                                  Temp                                     58.28 MB                               

I'm going to guess the COM object is technically faster, but I leave that as an exercise for the reader.