I want to get a list of all ad computers excluding the servers that are in a text file. Here's my code:-
$excludedServers = (Get-Content
"C:\Users\testuser\Documents\RdpDisconnectedSessions\ExcludedServers.txt").name #| Sort-Object
Get-ADComputer -Filter * | Where { $_.DistinguishedName -like "*Computers*" -and $_.DistinguishedName -notmatch $excludedServers } | Select-Object Name
Any advise please ?
First, Get-Content is not going to bring back objects so the .name portion is not going to work. If it's just a list of computernames, then simply change it to.
$excludedServers = Get-Content "C:\Users\testuser\Documents\RdpDisconnectedSessions\ExcludedServers.txt"
If it's a CSV with a name column, then you can do it a few ways. Sticking with the format you had this would work
$excludedServers = (Import-Csv "C:\Users\testuser\Documents\RdpDisconnectedSessions\ExcludedServers.txt").name
Now that you have your list of names, you can filter like this (assuming it is actually the names of the servers and not their distinguished name)
Get-ADComputer -Filter * | Where { $_.DistinguishedName -like "*Computers*" -and $_.name -notin $excludedServers } | Select-Object Name
Related
I want to keep only the file with the largest version of the specified zip file in the folder using powershell. I wrote a shell script but it returns all the files. How can I modify the script to select only the file with the largest version?
$files = Get-ChildItem -Filter "*.zip"
$max = $files |Measure-Object -Maximum| ForEach-Object {[int]($_.Split("_")[-1].Split(".")[0])}
$largestFiles = $files | Where-Object {[int]($_.Split("_")[-1].Split(".")[0]) -eq $max}
Write-Output $largestFiles
Expectation:
A1_Fantasic_World_20.zip
A1_Fantasic_World_21.zip
B1_Mythical_Realms_11.zip
B1_Mythical_Realms_12.zip
C1_Eternal_Frame_Corporation_2.zip
C1_Eternal_Frame_Corporation_3.zip
↓
A1_Fantasic_World_21.zip
B1_Mythical_Realms_12.zip
C1_Eternal_Frame_Corporation_3.zip
A1_Fantasic_World's biggest number is 21.B1_Mythical_Realms's is 12.C1_Eternal_Frame_Corporation's is 3. So I want to choose the biggest version of zip.
First you add the calculated properties to your file system objects you use for filtering. Then with a combination of Group-Object, Sort-Object and Select.Object you can filter the desired files.
$FileList =
Get-ChildItem -Filter *.zip |
Select-Object -Property *,
#{
Name = 'Title'
Expression = {($_.BaseName -split '_')[0..$(($_.BaseName -split '_').count - 2)] -join '_' }
},
#{
Name = 'Counter'
Expression = {[INT]($_.BaseName -split '_')[-1]}
}
$LastOnesList =
$FileList |
Group-Object -Property Title |
ForEach-Object {
$_.Group | Sort-Object -Property Counter | Select-Object -Last 1
}
$LastOnesList |
Select-Object -Property Name
I have a problem with my Script.
I wanted to make a Script which makes a list of software which is found in a specific registry path
and see if this software equals installed software. and if so it should output me the uninstall string.
but right now it does not work as wanted. it never show me the output I wanted even if its similar. As Example i have the Program Git as Branding and in the software I got Git version 2.26.2 but it wont output the uninstall string when I selected git.
My code is:
$branding = Get-ChildItem "HKLM:\Software\DLR\Branding" | Get-ItemProperty | Select-Object -expandProperty ProgramName
$software = Get-ChildItem -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall, HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall | Get-ItemProperty | Select-Object -ExpandProperty DisplayName
ForEach ($brandinglist in $branding) {
$objCombobox.Items.Add("$brandinglist")
}
$objComboBox_SelectedIndexChanged=
{
$selectme = $objCombobox.SelectedItem
Write-Host $selectme
if ("$selectme" -like "*$software*") {
$uninstall = Get-ChildItem -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall, HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall | Get-ItemProperty | Where-Object {$_.DisplayName -match "$electme" } | Select-Object -Property UninstallString
Write-Host "$uninstall"
}
}
You are trying the -like comparison wrong, in which you compare the selected item to an array of displaynames which doesn't work that way.
Also, there is no reason to get the Uninstall strings and Displaynames using an almost identical code twice.
Try
# get a string array of program names
$branding = Get-ChildItem -Path 'HKLM:\Software\DLR\Branding' | Get-ItemProperty | Select-Object -ExpandProperty ProgramName
$regPaths = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall', 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
# get an object array of DisplayName and UninstallStrings
$software = Get-ChildItem -Path $regPaths | Get-ItemProperty | Select-Object DisplayName, UninstallString
# fill the combobox with the (string array) $branding
$objCombobox.Items.AddRange($branding)
$objComboBox.Add_SelectedIndexChanged ({
$selectme = $objCombobox.SelectedItem
Write-Host $selectme
# get the objects that have a displayname like the selected item and write out the matching Uninstall strings
$software | Where-Object {$_.DisplayName -like "*$selectme*" } | ForEach-Object {
Write-Host $_.UninstallString
}
})
I am trying to get a list of computers from AD excluding some computers which are not in use anymore.
Here is my code:
$ServerList = Get-ADComputer -Filter * | Where {
$_.DistinguishedName -like "*Computers*" -and $_.DistinguishedName -notlike #("*server1*","*Server2*")
} | Select-Object Name
I am trying to put the computers which I was to exclude in an array instead of using
-and $_.DistinguishedName -notlike "*serverIwantToExclude*"
Can you guys give me any idea on how I could amend it ?
-notlike does not support collections on the right-hand side (RHS). A similarly intended approach is to use -notmatch, which is a regex string:
$ServerList = Get-ADComputer -Filter * |
Where { $_.DistinguishedName -like "*Computers*" -and $_.DistinguishedName -notmatch 'server1|Server2'} |
Select-Object Name
If you want your server names in a list first, you can create a regex string from that.
$serverdown = 'server1','server2'
$regex = $serverdown -join '|'
$ServerList = Get-ADComputer -Filter * |
Where { $_.DistinguishedName -like "*Computers*" -and $_.DistinguishedName -notmatch $regex} |
Select-Object Name
If you do not anchor your regex strings, it looks for the regex match anywhere within the target string (effectively having surrounding wildcards). | is an alternation (an effective OR).
There are other operators that support collections like -contains, -in, -notin, and -notcontains. However, they must match exactly and cannot use wildcards.
you can use the -inotin operator if you know the full name of the servers you wish to exclude, meaning you can not use a wildcard or regex with the -inotin operator. If this is the case and you know the names I recommend using the Name property of the ADComputer object.
[string[]] $excludedServers = 'server1','server2'
$ServerList = Get-ADComputer -Filter * | Where {
$_.DistinguishedName -like "*Computers*" -and $_.Name -inotin $excludedServers
} | Select-Object Name
another way to exclude them is to add all those computers to a group and exclude it
#Provide DN of the group
$groupname = "CN=groupname,OU=Groups,DC=Domain,DC=COM"
get-adcomputer -filter {(OperatingSystem -like "Windows")} | -properties * | ?{([string]$_.memberof -notmatch $groupname)} | select name, lastlogondate
I've been tasked with creating a script that checks to see if the office cameras we've set up have stopped uploading their feeds to the "Camera" share located on our Windows 2016 storage server. If the NEWEST .mkv is over an hour old compared to the current time (get-date) then the "problem" camera needs to be restarted manually. (No need to script that part.)
Here's what my Director has written so far:
#Variable Definitions start here
$numhours = 1
Get-ChildItem "d:\Shares\Cameras" | Foreach {
$folderToLookAt = ($_.FullName + "\*.mkv")
$result = Get-ChildItem -Recurse $folderToLookAt | Sort-Object CreationTime -Descending
echo $result[0].FullName
echo $result[0].CreationTime
}
The first variable really isn't used yet, but I'm kind of dumb-struck as what to do next. The above returns the full names and creation times successfully of the newest .mkvs
Suggestions on the next part?
Invert the logic - instead of searching all the files, sorting them, finding the most recent, and checking the date, do it the other way round.
Look for files created since the cutoff, and alert if there were none found:
$cutOffTime = [datetime]::Now.AddHours(-1)
Get-ChildItem "d:\Shares\Cameras" | Foreach {
$folderToLookAt = ($_.FullName + "\*.mkv")
$result = Get-ChildItem -Recurse $folderToLookAt | Where-Object { $_.CreationTime -gt $cuttoffTime }
if (-not $result)
{
"$($_.Name) has no files since the cutoff time"
}
}
I'm assuming your paths look like:
D:\Shares\Cameras\Camera1\file1.mkv
D:\Shares\Cameras\Camera1\file2.mkv
D:\Shares\Cameras\Camera2\file1.mkv
D:\Shares\Cameras\Camera2\file2.mkv
D:\Shares\Cameras\Camera3\file1.mkv
.
.
.
If so, I would do something like this:
# The path to your files
$CameraShareRoot = 'D:\Shares\Cameras';
# Number of Hours
$NumberOfHours = 1;
# Date and time of significance. It's $NumberOfHours in the past.
$MinFileAge = (Get-Date).AddHours( - $NumberOfHours);
# Get all the folders at the camera share root
Get-ChildItem -Path $CameraShareRoot -Directory | ForEach-Object {
# Get the most recently created file in each folder
$_ | Get-ChildItem -Recurse -Filter '*.mkv' -File | Sort-Object -Property CreationTime -Descending | Select-Object -First 1
} | Where-Object {
# Remove any files that were created after our datetime
$_.CreationTime -lt $MinFileAge;
} | Select-Object -Property FullName, CreationTime
This will just output the full file name and creation time for stale cameras.
You could do something like this to email yourself a report when the results have any files:
# The path to your files
$CameraShareRoot = 'D:\Shares\Cameras';
# Number of Hours
$NumberOfHours = 1;
# Date and time of significance. It's $NumberOfHours in the past.
$MinFileAge = (Get-Date).AddHours( - $NumberOfHours);
# Get all the folders at the camera share root, save the results to $StaleCameraFiles
$StaleCameraFiles = Get-ChildItem -Path $CameraShareRoot -Directory | ForEach-Object {
# Get the most recently created file in each folder
$_ | Get-ChildItem -Recurse -Filter '*.mkv' -File | Sort-Object -Property CreationTime -Descending | Select-Object -First 1;
} | Where-Object {
# Remove any files that were created after our datetime
$_.CreationTime -lt $MinFileAge;
}
# If there are any stale camera files
if ($StaleCameraFiles) {
# Send an email
$MailMessage = #{
SmtpServer = 'mail.example.com';
To = 'youremail#example.com';
From = 'youremail#example.com';
Subject = 'Stale Camera Files';
Body = $StaleCameraFiles | Select-Object -Property FullName, CreationTime | ConvertTo-Html -Fragment | Out-String;
BodyAsHtml = $true;
}
Send-MailMessage #MailMessage;
}
Generally you will want to use LastWriteTime instead of CreationTime since the latter can be updated by a file move or copy, but maybe that's what you want here.
You have to compare the CreationTime date with (Get-Date).AddHours(-1). The AddHours method allows you to add hours to the DateTime, but also to subtract.
You can use the following example:
$Path = 'd:\Shares\Cameras'
$CreationTime = Get-ChildItem -Path $Path -Filter *.mkv |
Sort-Object -Property CreationTime -Descending |
Select-Object -First 1 -ExpandProperty CreationTime
if ($CreationTime -lt (Get-Date).AddHours(-1)) {
# your action here (restart, send mail, write output, ...)
}
It also optimizes your code a bit. ;)
$LatestFile = Get-ChildItem C:\Users\Connor\Desktop\ | Sort CreationTime | Select -Last 1
if ($LatestFile.CreationTime -gt (Get-Date).AddHours(-1)){
#It's Currently Working
} else {
#Do Other Stuff
}
try this :
Get-ChildItem "c:\temp" -Filter *.mkv -File | sort CreationTime -Descending |
select -First 1 | where CreationTime -lt (Get-Date).AddHours(-1) |
%{Write-Host "Alert !!" -ForegroundColor Red}
My goal is to get a list of AD computer objects not following naming conventions with the whenCreated property. I am trying to export out a HTML file using the following PowerShell function:
function get_bad_names
{
$result = Get-ADComputer -searchbase $OU
-Filter {Name -notlike 'name1' -and
Name -notlike 'name2' -and
Name -notlike 'name3'}
-Properties whenCreated | sort whenCreated
$result | ConvertTo-Html | Out-File $dir\badnames.html
}
get_bad_names
Is there a more elegant way of structuring the Name filter lines? We have over 40 lines of different "names." In other words, over 40 lines in my script say Name -notlike 'name#' -and
Ideally I'd like for the code to read from a text file and export out the same results.
FYI: this function works but it is not ideally written. Any suggestions would be appreciated.
If you'd like to filter the query, construct an LDAP filter:
# Define the names to exclude
$NamesToExclude = "Name1","Name2","Name3"
# Turn them into LDAP clauses in the form of "(!(Name=Name1))"
$LDAPClauses = $NamesToExclude |ForEach-Object {
'(!(Name={0}))' -f $_
}
# Create a single query filter string with all the clauses from above
$LDAPFilter = "(&$LDAPClauses)"
$result = Get-ADComputer -LDAPFilter $LDAPFilter -SearchBase $OU -Properties whenCreated |Sort-Object whenCreated
You could filter with a regular expression using Select-Object but then you should get all computers in the OU with the -filter *, and that might strain your network. I would do the filtering and if more properties are needed, run Get-Computer again only for the matches:
Get-ADComputer -searchbase $OU -Filter * |
? { $_.name -match "name\d{1,2}" } | # Match if string "name" is followed one or two digits
Get-ADComputer -property * # Get all properties for the computers if needed
Is there a more elegant way of structuring the Name filter lines?
Not exactly. You have a fairly limited set of operators when you use the -Filter parameter of commands in the ActiveDirectory module because it has to translate them all to LDAP filters.
However, you can do something like this:
$ExcludedPatterns = 'Name1', 'Name2', 'Name3'
$ComputerFilter = foreach ($Pattern in $ExcludedPatterns) { "(Name -notlike '$Pattern')" }
$ComputerFilter = $ComputerFilter -join ' -and '
Get-ADComputer -Filter $ComputerFilter
Now you can maintain a list of name patterns.
Keep in mind that the -Filter property is not a ScriptBlock on the ActiveDirectory commands. They're all Strings and in spite of the documentation for these commands they should be written that way. Writing them as ScriptBlocks will eventually cause you problems with variable expansion.
Compare:
$ComputerName = hostname
Get-ADComputer -Filter "Name -eq '$ComputerName'"
Get-ADComputer -Filter { Name -eq '$ComputerName' }
Thank you to everyone for their feedback. I was impressed how fast the responses were.
I was able to achieve my goal using regular expressions reading from a text file.
My code now looks like this:
[regex]$Expression = Get-Content $dir\regex.txt
function get_bad_names
{
$result = Get-ADComputer -searchbase $OU
-Filter {Enabled -eq $true}
-Properties whenCreated | Where-Object {$_.Name -notmatch $Expression}| sort whenCreated
$result | ConvertTo-Html | Out-File $dir\badnames.html
}
get_bad_names