Misc commands
Setting NTFS permissions with PowerShell http://blogs.technet.com/b/josebda/archive/2010/11/12/how-to-handle-ntfs-folder-permissions-security-descriptors-and-acls-in-powershell.aspx
Using the replace operator with regular expressions, note the use of the `
"Hello Stephen" -replace "^Hello (.+)$", "Goodbye `$1"
Passing an array to a constructor http://stackoverflow.com/questions/12870109/how-do-i-call-new-object-for-a-constructor-which-takes-a-single-array-parameter
$certString = "MIIDT....."
$certBytes = [System.Convert]::FromBase64String($certString)
$cert = [System.Security.Cryptography.X509Certificates.X509Certificate2] $certBytes
Listing Windows Updates with PowerShell
Taken from a very useful article: http://social.technet.microsoft.com/wiki/contents/articles/4197.how-to-list-all-of-the-windows-and-software-updates-applied-to-a-computer.aspx. The code is copied here in case the page gets removed.
Standard listing using WMI
Get-WmiObject -Class "win32_quickfixengineering" |
Select-Object -Property "Description", "HotfixID", @{Name="InstalledOn"; Expression={([DateTime]($_.InstalledOn)).ToLocalTime()}}
To get a list of hotfixes to transport to another system the PowerShell fragment below prints a command that can be executed on the remote system.
'$hotfixes = @("{0}")' -f ((Get-WmiObject win32_quickfixengineering | % {$_.HotFixID}) -join '","')
Full listing of updates
$Session = New-Object -ComObject "Microsoft.Update.Session"
$Searcher = $Session.CreateUpdateSearcher()
$historyCount = $Searcher.GetTotalHistoryCount()
$Searcher.QueryHistory(0, $historyCount) | Select-Object Title, Description, Date,
@{name="Operation"; expression={switch($_.operation){
1 {"Installation"}; 2 {"Uninstallation"}; 3 {"Other"}
}}}
Installed products
To get installed products:
Get-WmiObject win32_product | sort Vendor,Name | ft -Wrap -AutoSize Version,Name -GroupBy Vendor
dir HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ | % {$_.OpenSubkey($_.Path).GetValue("DisplayName")}
IIS Management with PowerShell
- http://blogs.iis.net/jeonghwan/archive/2008/07/30/iis-powershell-user-guide-comparing-representative-iis-ui-tasks.aspx
- http://blogs.iis.net/jeonghwan/archive/2012/11/12/examples-of-iis-powershell-cmdlets.aspx
Exchange management
Taken from http://social.technet.microsoft.com/Forums/office/en-US/c5473bde-53fc-404c-89af-4d3dd112a084/get-list-of-users-in-c-code-who-has-mailbox-access-permissions-to-particular-user?forum=exchangesvrgeneral (I have not validated this code fragment).
SecureString password = new SecureString();
string str_password = "xxxxx";
string username = "Administrator@admin.com";
foreach (char x in str_password) { password.AppendChar(x); }
PSCredential credential = new PSCredential(username, password);
WSManConnectionInfo connectionInfo = new WSManConnectionInfo(new Uri("http://ExchangeServer.admin.com/powershell/Microsoft.Exchange"), "http://schemas.microsoft.com/powershell/Microsoft.Exchange", credential);
Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo);
PowerShell powershell = PowerShell.Create();
PSCommand command = new PSCommand();
command.AddCommand("Get-Mailbox");
command.AddParameter("ResultSize", int.MaxValue);
powershell.Commands = command;
runspace.Open();
powershell.Runspace = runspace;
Collection usersList = powershell.Invoke();
runspace.Close();
Authenticated web request
The following fragment is useful for testing, both injecting credentials into a web request and ignoring certificate validation failures (this must only be used for testing/diagnostic purposes):
$url = "https://«host»/«path»"
$account = "«domain»\«username»"
if ($password -eq $null) {$password = read-host -AsSecureString "Enter password for $account"}
$source = @"
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
public static class CustomCertificateValidationCallback {
public static void Install()
{
ServicePointManager.ServerCertificateValidationCallback += CustomCertificateValidationCallback.CheckValidationResult;
}
public static bool CheckValidationResult(
object sender,
X509Certificate certificate,
X509Chain chain,
SslPolicyErrors sslPolicyErrors)
{
// please don't do this. do some real validation with explicit exceptions.
return true;
}
}
"@
Add-Type -TypeDefinition $source -Language CSharp
[CustomCertificateValidationCallback]::Install()
[System.Reflection.Assembly]::LoadWithPartialName("System.Net") > $null
[System.Reflection.Assembly]::LoadWithPartialName("System.Net.Http") > $null
$cred = New-Object System.Net.NetworkCredential -ArgumentList $account,$password
$handler = New-Object System.Net.Http.HttpClientHandler
$handler.Credentials = $cred
$handler.PreAuthenticate = $True
$httpclient = New-Object System.Net.Http.HttpClient -ArgumentList $handler
$httpclient.GetAsync($url).Result
Windows Features
# Get a list of windows features to install on another system
(Get-WindowsFeature | ? {$_.Installed} | ? {$_.SubFeatures.Length -Eq 0} | % {$_.Name}) -Join ","PowerShell Command History File
$env:APPDATA\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt