Went through the Windows 10 upgrade procedure this morning. Fairly quick process – just over the hour including download on a slow broadband link. Most of my settings from Windows 8.1 were saved. So far impressions are reasonable to good. PowerShell 5.0 is installed £> $PSVersionTable Name Value —- —– PSVersion 5.0.10240.16384 WSManStackVersion […]
A conference organiser’s work is never done. The dust has just settled from PowerShell Summit NA 2015 and we’re gearing up for PowerShell Europe 2015. We also need to start thinking about PowerShell NA 2016! A post on powershell.org http://powershell.org/wp/2015/07/28/powershell-summit-na-2016-call-for-topics-coming-soon/ serves as a warning to start thinking about topics for PowerShell NA 2016 […]
Dates as reported by WMI still seem to cause a lot of problems. If you use the WMI cmdlets £> Get-WmiObject -Class Win32_OperatingSystem | select *date* | fl InstallDate : 20131205101649.000000+000 LocalDateTime : 20150728121320.002000+060 That format is year, month, day, hour, minute, second then fractions of a second after the decimal point with the […]
A question on the forum http://powershell.org/wp/forums/topic/cannot-add-digital-signature-to-my-script/#post-27883 indicated a problem when using a self signed certificate for testing code signing. According to the about_signing help file CREATE A SELF-SIGNED CERTIFICATE ——————————– To create a self-signed certificate in use the New-SelfSignedCertificate cmdlet in the PKI module. This module is introduced in Windows PowerShell […]
DevOps is the fusion of development and operations practices to give you faster, more reliable, roll out of functionality to your organisation. Its a growing area and while much of DevOps practice is cultural rather than technical you will need at least some tools to get the job done. There are a growing number […]
PowerShell has a new home. This site on MSDN https://msdn.microsoft.com/en-us/powershell is the centre for Microsoft’s PowerShell documentation. Book mark it now!
I’ve seen a lot of scripts recently that use Read-Host to get input data. This is generally not best practice – I tend to only use Read-Host if I want to get a password and obscure the text on screen. A better practice is to use parameters – either in a function or a […]
A question on the forum asked about storing data used in comparisons, The example was based on a list if IP addresses where some were known to be good and the questioner wanted to filter out the known good ones so he just had to investigate the rest. You could put the data in […]
One of the things I like about writing advanced functions is the ability to validate the input. if you test the input immediately you can often stop mistakes being made. Mistakes that could damage your system! One of the validation options is to test the input against a regular expression. Not being a big […]
If you look at the working part of the code to discover the distinguished name of a computer: £> $computer = ‘w12r2sus’ £> $filter = “(&(objectCategory=computer)(objectClass=computer)(cn=$computer))” £> ([adsisearcher]$filter).FindOne().Properties.distinguishedname CN=W12R2SUS,OU=Servers,DC=Manticore,DC=org What happens if the computername you chose doesn’t exist? £> $computer = ‘w12r2nope’ £> $filter = “(&(objectCategory=computer)(objectClass=computer)(cn=$computer))” £> ([adsisearcher]$filter).FindOne().Properties.distinguishedname £> You don’t […]