Solved

Powershell losing variables

Posted on 2011-02-23
2
750 Views
Last Modified: 2012-05-11
Hi there,

sometimes variables are losing their values and I dont know why - e.g.:

$Comp = gwmi -query ("Select SystemType,DnsHostName,Domain,DomainRole from Win32_ComputerSystem")

If ($comp.DomainRole -match "3")
{
$SetUsername=$comp.domain+'\'+$UserName
$domain = New-Object DirectoryServices.DirectoryEntry
$search = [System.DirectoryServices.DirectorySearcher]$domain
$search.Filter = "(&(objectClass=Computer)(cn=$comp.dnshostname))"
$Computer = $search.FindOne().GetDirectoryEntry()
}

The variable $comp.dnshostname is not working at this position:

$search.Filter = "(&(objectClass=Computer)(cn=$comp.dnshostname))"


But if I put the variable into a new one it works - e.g.

$Comp = gwmi -query ("Select SystemType,DnsHostName,Domain,DomainRole from Win32_ComputerSystem")

If ($comp.DomainRole -match "3")
{
$SetUsername=$comp.domain+'\'+$UserName
$GetComp=$comp.dnshostname
$domain = New-Object DirectoryServices.DirectoryEntry
$search = [System.DirectoryServices.DirectorySearcher]$domain
$search.Filter = "(&(objectClass=Computer)(cn=$getcomp))"
$Computer = $search.FindOne().GetDirectoryEntry()
}

I put the variable $comp.dnshostname into a new one $GetComp:

$GetComp=$comp.dnshostname

Now it works at the above mentioned position:

$search.Filter = "(&(objectClass=Computer)(cn=$GetComp))"

Why can't I work with $comp.dnshostname directly?

Cheerio


0
Comment
Question by:ptea
2 Comments
 
LVL 27

Accepted Solution

by:
KenMcF earned 500 total points
ID: 34960115
Without testing try to put the var inside this $() like this

$search.Filter = "(&(objectClass=Computer)(cn=$($comp.dnshostname)))"
0
 

Author Comment

by:ptea
ID: 34960242
works - thx
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This script can help you clean up your user profile database by comparing profiles to Active Directory users in a particular OU, and removing the profiles that don't match.
The Nano Server Image Builder helps you create a custom Nano Server image and bootable USB media with the aid of a graphical interface. Based on the inputs you provide, it generates images for deployment and creates reusable PowerShell scripts that …
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question