How to add a header ExpandProperty in PowerShell? - powershell

I am trying to build a script to help me figure out service accounts using Kerberos Constrained Delegation. Two of the properties that I am interested in are multi-valued, so I am using the -ExpandProperty switch. Unfortunately, I haven't figured out a 'clean' way to output the property name with the expanded values. Because the two expanded properties have similar values and can overlap, I need to do something to show where ServicePrincipalNames ends and msDS-AllowedToDelegateTo begins. The code below works, but it seems like there should be a way of getting the same (or very similar) output without having to use Write-Output.
$Account = "svcSomeService"
# Query AD once
$Details = Get-ADUser -Identity $Account -Properties *
# Main result set
$Details | Select-Object -Property SamAccountName, DisplayName, Enabled, PasswordNeverExpires, PasswordExpired, LockedOut, AccountNotDelegated, TrustedForDelegation, TrustedToAuthForDelegation, KerberosEncryptionType
# Expand muulti-value column ServicePrincipalNames
Write-Output "ServicePrincipalNames"
Write-Output "---------------------"
$Details | Select-Object -ExpandProperty ServicePrincipalNames #Tried with and without Format-Table
# Expand muulti-value column msDS-AllowedToDelegateTo
Write-Output "`n"
Write-Output "msDS-AllowedToDelegateTo"
Write-Output "------------------------"
$Details | Select-Object -ExpandProperty msDS-AllowedToDelegateTo #Tried with and without Format-Table

You can construct a [pscustomobject] that houses the expanded values in distinct properties:
[pscustomobject] #{
ServicePrincipalNames = $Details.ServicePrincipalNames
msDS-AllowedToDelegateTo = $Details.msDS-AllowedToDelegateTo
}
Note:
$Details.ServicePrincipalNames is a more efficient alternative to $Details | Select-Object -ExpandProperty ServicePrincipalNames, via the member-access enumeration feature.
As for display formatting on the caller's side: Since the output object has only two properties, it will implicitly render as a table (implicit Format-Table), which doesn't provide much space for showing the individual values. Piping to Format-List helps, but additionally requires you to raise $FormatEnumerationLimit to avoid truncation;[1] to provide a simple example:
$FormatEnumerationLimit=100 # !! As of v7.2.2: only effective in *global* scope
[pscustomobject] #{ prop1 = 1..100; prop2 = 80..1 } | Format-List
[1] Due to an unfortunate bug up to at least PowerShell 7.2.2, setting this preference variable is only effective in the global scope - see GitHub issue #888.

Related

Powershell - add extra column called RoleUserA* inside CSV file

I want to add an extra, empty column called RoleUserA* to a CSV file, as attempted below. RoleUserA* is not an AD Attribute.
Get-ADUser -Filter {Enabled -eq $true} -Properties * |
Select givenName, sn, displayname, samaccountname, RoleUserA*, title |
Export-Csv -Path "c:\tmp\users.csv" -NoTypeInformation -Encoding UTF8
Desired output:
givenName,sn,displayname,samaccountname,RoleUserA*,title
user01,sn1,User01 SN,user01,,specialist
user02,sn2,User02 SN,user02,,specialist
However, RoleUserA* isn't being added as a column.
The (positionally implied) -Property parameter of the Select-Object cmdlet (whose built-in alias is select) interprets its arguments as wildcard expressions.
Therefore, RoleUserA* looks for existing properties on the input objects whose name starts with RoleUserA - and simply adds none to the output objects if no existing property matches; a simple example:
# Because 'bar*' matches no existing properties, it is *ignored*.
PS> [pscustomobject] #{ foo = 1 } | Select-Object foo, bar*
foo
---
1
While escaping * as `* ('RoleUserA`*') so that it is used literally, as a (non-existent, in this case) property name, should be possible, it unfortunately isn't as of PowerShell 7.2.2,[1] as Mathias R. Jessen points out, and he also points to the solution that does work:
Use a calculated property, whose Name entry (shortened to n below) is always treated literally; using { $null } as the Expression (e) entry script block creates the property with value $null:[1]
Get-ADUser -Filter 'Enabled -eq $true' -Properties * |
Select givenName, sn, displayname, samaccountname, #{n='RoleUserA*';e={ $null }}, title |
Export-Csv -Path "c:\tmp\users.csv" -NoTypeInformation -Encoding UTF8
Note: In scripts used long-term, it's better to spell out the entry keys of the calculated property in full, i.e.:
#{ Name = 'RoleUserA*'; Expression = { $null } }
[1] This should be considered a bug, or at least needs documenting - see GitHub issue #17068
[2] Using just { } - i.e. an empty script block, almost works the same, but it actually creates an "Automation Null" value (the System.Management.Automation.Internal.AutomationNull.Value singleton), which in expressions behaves the same as $null, but acts differently in a pipeline - see this answer for more information.
That said, in the context of converting to CSV this difference won't matter.

PowerShell pipe ExpandProperty to another Select-Object

I want to get the aliases for all email recipients in my O365 tenant.
If I were doing this one traditional Exchange, the easiest is to Get-Recipient and pull out the SMTPAddress property using Exchange Manangement Console. (Note the Select piped into another Select; works like a champ.)
Get-Recipient | Select Name,SamAccountName -ExpandProperty EmailAddresses | Select Name,SamAccountName,SmtpAddress
The issue is when I try to do the same thing in EXO, the "EmailAddresses" property is output as a flat string and so when I try to pipe it to a 2nd select, the only Property is the Length, not the actual value of the string.
The following kind of works, but I feel like there has to be a better way?
Get-EXORecipient | Select Name -ExpandProperty EmailAddresses | % {Write-Output "$($_.Name),$($_)"}
What -ExpandProperty EmailAddresses expands to are strings, as you state.
The additional properties that these strings are decorated with if you also pass (positionally implied) -Property arguments, such as Name in your example, are present, but will typically not surface unless you explicitly access them on the now-decorated output strings.
If you want output objects that contain each email address as a property, more work is needed.
Get-EXORecipient | ForEach-Object {
foreach ($emailAddress in $_.EmailAddresses) {
[pscustomobject] #{
EmailAddress = $emailAddress
Name = $_.Name
# ... add further properties of interest here
}
}
}

powershell how do I Create/format a dynamic list from a group membership to use in a for each loop

bit of a noob question.
I have the following cmd which grabs the server members of a group which I can copy into a text list. however as the group changes I need to modify the text list manually.
Get-AdGroupMember -identity "Reboot 7pm" | Sort-Object | select name
when I have that output in a text list, the following works fine.
$listpath = "C:\Scripts\servers.txt"
[System.Collections.ArrayList]$list = #(Get-content $listpath)
foreach($ComputerName in $list)
{
Get-Uptime -ComputerName $ComputerName
I want to know if it is possible to use a variable that I can use again in a for each loop. I've tried to do so, however the format of the list is not the same when is goes into a variable, thus the function (get-uptime) against the server doesn't work, anyone know what I can do to format the output so I only get the server name?
EG.
$WSUS_7PM = Get-AdGroupMember -identity "Reboot 7pm" | Sort-Object | select name
PS C:\Windows\system32> $WSUS_7PM
name
----
AXXXXX003
BXXXXX005
CXXXXX006
DXXXXX007
PS C:\Windows\system32> foreach($Name in $WSUS_7PM) {Write-Host $Name}
#{name=AXXXXX003}
#{name=BXXXXX005}
#{name=CXXXXX006}
#{name=DXXXXX007}
so when I run the same cmds as above modified with the variable instead of the text list, I get the following as the server name is obviously incorrect.
$listpath = $WSUS_7PM
[System.Collections.ArrayList]$list = #(Get-content $WSUS_7PM)
foreach($ComputerName in $list)
{
Get-Uptime -ComputerName $ComputerName
WARNING: Unable to connect to #{name=AXXXXX003}
WARNING: Unable to connect to #{name=BXXXXX005}
I hope that makes sense to someone, appreciate the help in understanding what the difference is in the object output.
Thanks
Alzoo
When you use Select-Object name you are creating a list of objects with a name property. You can either expand it ahead of time
$WSUS_7PM = Get-AdGroupMember -identity "Reboot 7pm" | Sort-Object | Select-Object -ExpandProperty name
or reference the name property later
foreach($Name in $WSUS_7PM.name) {Write-Host $Name}

Remove characters inside expression Powershell

I'm trying to remove characters from an expression, without the option to define another integer.
This is the expression I currently have:
Get-ADUser -Identity $PSItem -Properties mail, manager, l, title |
Select-Object -Property Name, SamAccountName, Mail, l, title, #{
Name = "ManagerGID"
Expression = { (Get-Aduser -identity $psitem.manager).samaccountname }
},
#{
Name = "ManagerName"
Expression = { (Get-Aduser -identity $psitem.manager).name }
},
#{
Name = "PicURL"
Expression = {
(ConvertFrom-Json -InputObject (Invoke-WebRequest ('http://picasaweb.google.com/data/entry/api/user/' + $psitem.mail + '?alt=json')) |
Select-Object -ExpandProperty entry |
Select-Object -ExpandProperty 'gphoto$thumbnail')
}
}
For the PicURL option, the results from google for the gphoto$thumbnail will be something similar to this:
#{$t=https://lh3.googleusercontent.com***********.jpg}
I would like to remove the #{$t= and the } in the start and end of the property. Unfortunately, couldn't find a proper way to do that without having to take out this expression from the pipeline, which is not very effective for the rest of the code.
If you're curious, this is for automatic org chart creation from AD, with google profile pics included.
The implication of seeing output #{$t=https://lh3.googleusercontent.com***********.jpg} is that your input object's gphoto$thumbnail property value is a custom object with a single property literally named $t, whose value is the URL of interest.[1]
Therefore, you can simply append another Select-Object call to extract the $t property's value:
... | Select-Object -ExpandProperty '$t'
Note the need to single-quote ('...') property name $t, so that it isn't mistaken for a variable reference, the same way that property name gphoto$thumbnail required single-quoting.
Alternatively, in v3+, consolidate the then-three Select-Object -ExpandProperty calls into a single ForEach-Object call:
... | ForEach-Object { $_.entry.'gphoto$thumbnail'.'$tp' }
[1] This hashtable-like representation is what PowerShell uses to stringify [pscustomobject] instances.

Remove #{ColumnName from Powershell results

I'm relatively new to PowerShell scripting and have mainly been cobbling together different scripts and cmdlets from Googling what I'm trying to do. One problem that I'm unable to Google, or search for on StackExchange, because of the special characters is having all my results come out as #{ColumnName=ColumnData}.
Here's an example script I found somewhere for pulling all the members of an AD group.
$Groups = Get-ADGroup -Filter {Name -like "!GroupName"}
$path = $groups
$myCol = #()
ForEach ($Group in $Groups)
{
$Members = #(Get-ADGroupMember "$Group")
ForEach ($Member in $Members){
try{
$user = get-aduser -identity $member -properties displayname
$MyObject = New-Object PSObject -Property #{
Displayname = $user.Displayname
}
$mycol += $MyObject}
catch {}}
}
Write-Host $MyCol | FL
I'm pretty sure there are better ways to get the members of an AD group but that's not the issue at the moment. The problem is all the data comes out like #{Displayname=Lawrence, Kimberly} and this happens with many of the scripts I've thrown together.
Any ideas on how to write scripts properly so I can just get DisplayName = Lawrence, Kimberly?
I agree your code is complex and it does not need to be. A couple of things that are important to mention is why your output looks the way it does.
You are creating an array of PSCustomObjects which function similar to hash-tables. In the end of your processing you have an array of objects with the property DisplayName. Since you are using Write-Host to display the the contents of $myCol it needs to cast it a string array in order to display it. You would see similar output if you just typed [string[]]$myCol. I should hope that you are doing something else in the processing as like the other answers show you have a very complicated way of getting what you are looking for.
Without beating the horse about those other solutions I will suggest some minor changes to yours as it stands. Your title and last sentence contradict what you are looking for since you want to remove the ColumnName in the title and the last sentence you are looking for output like DisplayName = Name.
Changing the last line will address both of these. If you just want the displaynames on there own
$myCols | Select-Object -ExpandProperty DisplayName
Lawrence, Kimberly
and if you actually want the other format you could do this
$myCols | ForEach-Object{
"DisplayName = $($_.DisplayName)"
}
Again, like the other answers, I stress that your code could use simple overhaul. If you needed to understand why it was working the way it way I hope I helped a little.
This actually has nothing to do with Active Directory; You are creating custom objects, then outputting them directly, and by default that is how PowerShell will format the output if you use Write-Host (which is intended to customize output). If you would like to be more specific about what your output should look like, we can help, but here is an example that outputs the results as just a list of strings, just using Write-Output:
$myCol = #()
$MyObject = New-Object PSObject -Property #{ DisplayName = "Lawrence, Kimberly" }
$myCol += $MyObject
$MyObject = New-Object PSObject -Property #{ DisplayName = "Hello, World" }
$myCol += $MyObject
# The default will show at-symbols, etc: Write-Host $MyCol | FL
Write-Output $myCol
The output will be:
DisplayName
-----------
Lawrence, Kimberly
Hello, World
Try this:
Get-ADGroup -Filter "Name -like '!GroupName'" |
Get-ADGroupMember |
Get-ADUser -Properties DisplayName |
Select-Object DisplayName
When I ran your code, I also got the hashes, even without special characters. Your code is way too unnecessarily complex.