PowerShell for Windows Admins

Aug 28 2010   5:07AM GMT

WQL wildcards

Richard Siddaway Richard Siddaway Profile: Richard Siddaway


Get-WmiObject -Class Win32_NetworkAdapter 

will show us a list of network adapters.  We can narrow this down to a specific adapter

Get-WmiObject -Class Win32_NetworkAdapter -Filter "DeviceId=’11’" | fl *

What if we know that there is a NIC that is labelled as Wireless something or other.  We have two options

Get-WmiObject -Class Win32_NetworkAdapter | where {$_.NetConnectionID -like "wireless*"}

use the where-object cmdlet and filter using a like statement or

Get-WmiObject -Class Win32_NetworkAdapter -Filter "NetConnectionID LIKE ‘wireless%’"

filter in the get-wmiobject. Note that the wildcard symbol is % NOT * in the filter parameter. This is because we are using WQL which is a subset of SQL.

We could also write this as

Get-WmiObject -Query "SELECT * FROM Win32_NetworkAdapter WHERE NetConnectionID LIKE ‘wireless%’"

The WQL equivalent of the single character wildcard “?” is _ so we could write

Get-WmiObject -Query "SELECT * FROM Win32_NetworkAdapter WHERE NetConnectionID LIKE ‘_ireless%’"

More information on WQL wildcards can be found


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