How to determine if a website is installed in IIS7 with Powershell?

Question

I'm pretty new to powershell, and I'm trying to automate the removal of a prior version of a website and addition of the newer version as a part of a TFS 2010 Build Template (Windows Workflow 4.0). Is it possible to see if a website or web app pool exists in IIS7 with powershell? I've tried running the following command:

import-module WebAdministration
Get-Website -Name "Default Web Site"

The output lists all of the websites installed on the box, not just the default web site.

Name             ID   State      Physical Path                  Bindings
-------------------------------------------------------------------------
Default Web Site 1    Started    %SystemDrive%\inetpub\wwwroot  http *:80:
                                                                net.tcp 808:*
                                                                net.pipe *
                                                                net.msmq localhost
                                                                msmq.formatname localhost 
MyWebsite1       2    Started    C:\inetpub\MyWebsite1          http *:80:mywebsite1.com
MyWebsite2       3    Started    C:\inetpub\MyWebsite2          http *:80:mywebsite2.com

If I try to run the command without the "-Name" parameter, the result is exactly the same.

David Brabant · Answer 1 · 2019-01-17T15:49:00.313

51

You can use Test-Path for both checking web sites & application pools:

Import-Module webadministration
$alias = "MyWebSite1"
$IISPath = "IIS:\Sites\Default Web Site\$alias"

if (Test-Path $IISPath) { Write-Host "$alias exists." }

$IISPath = "IIS:\AppPools"
cd $IISPath
if (Test-Path ".\MyAppPool") { Write-Host "MyAppPool exists." }

edited Jan 17 '19 at 15:49

answered Jun 15 '12 at 06:38

David Brabant

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I really wish I could mark two answers because this was helpful as well because it gave me another part of the answer that I was looking for. – Jarrett Coggin Jun 19 '12 at 20:25
Where is this IIS:\Sites path? – M.R. Feb 12 '14 at 18:58
That's a "virtual" path created by the IIS PowerShell provider. – David Brabant Feb 12 '14 at 19:27
Why does the script need to cd to IIS:\AppPools? – Josh Kodroff Feb 15 '16 at 14:58
You don't *need* to. This was just to illustrate the capabilities of the IIS PowerShell provider. – David Brabant Feb 15 '16 at 15:20
4

Test-Path IIS:\ alawys returns false for me – SZT Oct 03 '18 at 05:34
4

@SZT I had to include 'import-module webadministration' and run script as administrator before mine would work – deadflowers Feb 27 '20 at 20:23

score 20 · Accepted Answer · edited Aug 06 '14 at 08:43

20

I just noticed the same behavior. Seems like its not working as expected. However, you can roll your own:

get-website | where-object { $_.name -eq 'MyWebsite1' }

That just pipes the list returned by get-website to the where-object cmdlet and just return that single object.

If your new to PowerShell, I can't recommend Master PowerShell enough.

edited Aug 06 '14 at 08:43

Kiquenet

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answered Jun 14 '12 at 21:22

Zach Bonham

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good answer, +, +1 for link to Master Powershell. That looks awesome. Thanks! – shellter Jun 14 '12 at 23:52
The other answer didn't work for me, but this did. I just ran `if ($(Get-Website | Where-Object { $_.Name -eq 'sitename' }) -eq $null)` and it worked. – Samir Aguiar Oct 29 '17 at 23:09

How to determine if a website is installed in IIS7 with Powershell?

2 Answers2