End a PowerShell script when a query returns no entries

A few day ago, an Expert, Justin Yeung, fixed a script for me to check for a null value in the AD attribute msExchVersion and then perform an action on users found. I'll paste the value below. I'm wondering how I can terminate the script if the Get-ADUser returns no results. This would prevent the rest of the script from running. Any help is appreciated.
Import-Module ActiveDirectory
Add-PSSnapin -Name Microsoft.Exchange.Management.PowerShell.E2010

$Users = Get-ADUser -LDAPFilter "(!(msExchVersion=*))" -resultSetSize $null -searchbase "OU=TEST,OU=TestUsers,OU=VOIP,OU=User Accounts,DC=domain,DC=priv"
foreach ($User in $Users)
{
Set-aduser $User.SamAccountName -add @{msExchVersion="44220983382016"}
Start-sleep -second 15
Get-Mailbox $User.DistinguishedName -IgnoreDefaultScope | Update-Recipient
}

Open in new window


Any help is appreciated.
hccaAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

becraigCommented:
Import-Module ActiveDirectory
Add-PSSnapin -Name Microsoft.Exchange.Management.PowerShell.E2010

$Users = Get-ADUser -LDAPFilter "(!(msExchVersion=*))" -resultSetSize $null -searchbase "OU=TEST,OU=TestUsers,OU=VOIP,OU=User Accounts,DC=domain,DC=priv"
if ($users -ne $null -and $users -ne "") 
{

foreach ($User in $Users)
{
Set-aduser $User.SamAccountName -add @{msExchVersion="44220983382016"}
Start-sleep -second 15
Get-Mailbox $User.DistinguishedName -IgnoreDefaultScope | Update-Recipient
}
}

else {write-host "No users found... Exiting..." -fore RED;exit; }

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
hccaAuthor Commented:
Works like a champ. I never thought of the -ne and probably would still have gotten in wrong. I knew it would take an if else pair but could not work it out.
Thank you so much.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Powershell

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.