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PowerShell 2.0: One Cmdlet at a Time #5 Get-Hotfix
Posted on November 18th, 2009 2 commentsContinuing the series looking at new cmdlets available in PowerShell 2.0. This time we look at the Get-Hotfix cmdlet.
What can I do with it?
Retrieve hotfixes installed on a local or remote computer
Example:
Retrieve a list of hotfixes installed on Server1 which contain Security in their description. Display the Description, HotfixID and Caption properties.
Get-Hotfix -description Security* -computername Server01 | Select-Object Description,HotfixID,Caption
How could I have done this in PowerShell 1.0?
You could have used Get-WMIObject with the Win32_QuickFixEngineering class.
Get-WmiObject -class Win32_QuickFixEngineering -Filter "Description='Security Update'" -computername Server01 | Select-Object Description,HotfixID,Caption
Note: We had to specify the full name ‘Security Update’ since the filter parameter of Get-WMIObject does not support wildcard characters. If necessary you could pipe the results to Where-Object instead and use wild card characters, but this is not as efficient.
Funnily enough Get-Hotfix and Get-WMIObject -class Win32_QuickFixEngineering look pretty similar when you pipe them through to Get-Member
2 responses to “PowerShell 2.0: One Cmdlet at a Time #5 Get-Hotfix”
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I thought get-hotfix was the same as the WMI QFE, just in cmdlet form.
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Jonathan Medd November 18th, 2009 at 17:26
Indeed, it does look that way as you will see my note on piping both cmdlets to Get-Member.
There are some differences though like being able to use wildcards with the Description parameter.
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J Kavanagh November 18th, 2009 at 14:35