I'm new to Powershell (and scripting in general) so I hope this is an easy question to answer for someone with some experience. However because my question involves the use of a non-standard Powershell cmdlet, this may not be that easy.

I'm attempting to write a Powershell script that will query an OpenLDAP directory for informatin on a user and return the value of the mail attribute from OpenLDAP and insert that value into a corresponding Windows AD user object's WindowsEmailAddress attribute.

I came across /n Software's NetCmdLet package and am using the get-ldap command to get the mail attribute from OpenLDAP for users.  The results for a query for a user are:

objectClass                : {top, person, organizationalPerson, inetOrgPerson...}
cn                         : {User Name}
departmentNumber           : {Dept}
displayName                : {User Name}
employeeType               : {Employee}
facsimileTelephoneNumber   : {+### ### ####}
givenName                  : {User}
mail                       : {nobody@gmail.com}
o                          : {Your Organization Name Here}

I'd really like to get the nobody@gmail.com information, sans curly braces, to input into a variable so I can put that into the WindowsEmailAddress attribute for the user object in AD. 

Any idea how to parse the results of that query and get just the mail attribute? 

Thanks a lot!

Jason

Thank you both for the quick replies!  I'll give the suggestions a try and reply again when I've made some progress. Given my scripting skills that could still be a little while but this is awesome to have a lead on this.  Thanks!

Thanks again for the replies!  Halr9000, your suggestion that the ldapquery was returning an array for the mail attribute was correct and very helpful.  I've got the script setup in a very basic way that works if I pass an argument of username when I run the script but I'd like to run it against an OU where a number of mailbox-enabled users exist so that we can change the default Exchange smtp address for all the users in the OU.  (Exchange Email Address Policy is not an option for us.)  So I'm trying to come up with a for-each loop to do this but as I've stated before, my programming skills are close to null. 
Any suggestions?  The scripts are below:

This works for a single user when the username is passed as an argument when the script is run:

$user = $args[ 0 ]
$ldapquery = get-ldap -server "ldap.contoso.com" -dn "ou=people,dc=contoso,dc=com" -search "employeeNumber=$user" -attr
$ldapquery.mail[ 0 ]
Set-Mailbox -Identity $user -PrimarySmtpAddress $ldapquery.mail[ 0 ]

This is my attempt at a for-each loop (which does not work):

foreach ($x in Get-Mailbox -OrganizationalUnit "ou=employees,dc=ad,dc=contoso,dc=com")  {
    $ldapquery = get-ldap -server "ldap.contoso.com" -dn "ou=people,dc=contoso,dc=com" -search "employeeNumber=$x.Name" -attr
    $ldapquery.mail[ 0 ]
Set-Mailbox -Identity $user -PrimarySmtpAddress $ldapquery.mail[ 0 ]
}

The error returned for each user object in the OU is Cannot index into a null array.  +     $ldapquery.mail[ 0 <<<< ]

(Meaning if there are four user objects in the OU, I get four of the errors.)  I'm still reading and learning with Powershell so I'm trying loads of things trying to figure out for-each loops....

Thanks a lot!  
Jason

Kscriss, thanks for the replies! Much appreciated. I had to look up the 'gm' alias you suggested to find it's short for get-member.  That's a good tip to pipe through that to see the results.  I was also using a write-host $variable command after some of the lines to make sure I was getting the results I expected. 

I worked around a bit more and figured out the for-each loop syntax a bit better and the code below, while still rough, is doing the trick for me. Now to just add some code at the start to ask the script executer for the OU name rather than having to hard code it into the script....

# Get mailbox information for all users in the OU. Store results in $user
$user = Get-Mailbox -OrganizationalUnit "ou=finance,dc=ad,dc=contoso,dc=com"

# For-each loop to first get only username from get-mailbox command above and then put that in $uname
foreach ($mail in $user) {
$uname = $mail.Name

# Write usernames to screen so we see who we're dealing with
Write-host $uname

# Query OpenLdap for username to retrieve mail attribute. Store mail in $smtp (really to prevent mail address from being displayed on screen
$ldapquery = get-ldap -server "ldap.contoso.com" -dn "ou=people,dc=contoso,dc=com" -search "employeeNumber=$uname" -attr
$smtp = $ldapquery.mail[ 0 ]

# Show in console the e-mail address
Write-host $smtp

# Finally, update the Exchange user default SMTP address with mail address from OpenLDAP
Set-Mailbox -Identity $uname -PrimarySmtpAddress $smtp
}

 p.s. How do I make text appear in the code text box like Kscriss has done?  I'm using the "code" style in the editor but it seems to do nothing.

Thanks!       Jason