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Windows PowerShell Select

Introduction to Windows PowerShell Select

These are three way that PowerShell uses 'Select':

  1. Perhaps the most common way is in a WMI Query Language (WQL) statement.  For example, Get-WmiObject uses '-query' to introduce a classic 'Select * from' a phrase, see example 1
  2. The second context for 'Select' in PowerShell is Select-String.  This cmdlet not only opens a file, but also checks for a word, a phrase, or in fact any pattern match. 
  3. Another use is Select-Object, which is often abbreviated to plain Select. In this case Select is used to choose the columns displayed in the output.

Example 1 Select Hard Disk Volumes

This WMI example employs the Win32_logicaldisk class to display volumes with DriveType =3.  A value of 3 means local and non-removable.  See how Select * feeds off Get-WmiObject -query.

# PowerShell Select Statement
Get-WmiObject -query `
"Select * from Win32_logicaldisk where DriveType ='3'" `
| Format-Table -auto

Note 1:

Example 2 Check to See if Windows Remoting is Running

Here is another example of a WMI Query Language (WQL) statement using 'Select'.

# PowerShell Select * remoting services
Get-WmiObject -query
"Select * from Win32_service where name='WinRM' "

Note 2:  WinRm is the Windows service which is a prerequisite for PowerShell v 2.0's remoting capabilities.

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Example 3: Win32_NTLogEvent with Select *

This script filters the event logs for two properties, log = Application and type = Error; furthermore this PowerShell script formats the output into a table.

# Powershell Select Example from Event Logs
$Logs = Get-WmiObject -query `
"SELECT * FROM Win32_NTLogEvent WHERE (logfile='system') AND (type='error')"
$Logs | Format-Table EventCode, SourceName, Message -auto

Summary of PowerShell Select

This page deals with PowerShell 'Select' as in is in a WMI Query Language (WQL) statement. For instance, Get-WmiObject uses '-query' to introduce a classic 'Select * from' a phrase.

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See More Microsoft PowerShell WMI Examples:

Home   • PowerShell Get-WmiObject   • Windows PowerShell   • PowerShell 3.0 Network

Win32_pingstatus   • WMI Win32_NetworkAdapter   • Win32_NetworkAdapterConfig

Disable NIC   • PowerShell -Filter  • PowerShell -Query   • PowerShell Select   • Free WMI Monitor

Please email me if you have any example scripts. Also please report any factual mistakes, grammatical errors or broken links, I will be happy to correct the fault.



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Windows Management Instrumentation (WMI) is most useful for PowerShell scripting.

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Author: Guy Thomas Copyright © 1999-2017 Computer Performance LTD All rights reserved.

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