powershell: automation for everyone
DESCRIPTION
PowerShell is a rich and powerful automation language. Due to its self describing nature it's also dead easy to learn.TRANSCRIPT
Gavin Barron, Solution ArchitectMarch 22, 2014
ComCamp Auckland
PowerShell: Automation for Everyone
The only five commands you need
Rules for writing scripts
Demos
Intro
Wrap up
Our agenda
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SharePoint Server MVP
Developer
Skier
http://gavinb.net
@gavinbarron
Gavin BarronSolution Architect
Your presenter
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Why Automate?
Repeatability
Reliability
Save time?
Eliminate boring manual tasks
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Why PowerShell?
Product specific cmdlets
Able to run .NET code
Hooks into WMI/COM
Object pipeline
Readable scripts
The only five commands you need
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Get-Command
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Get-Help
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Get-Member
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Where-Object
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ForEach-Object
Demos
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Find the command you need
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Simple Pipeline Use
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File renaming in .bat
@echo offfor /f "delims=" %%a in ('dir /b *.txt') do call :dot "%%a"pausegoto :EOF:dotset "var=%~n1"set "var=%var:.=_%" echo ren %1 "%var%%~x1"
Rules for writing scripts
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Consider error cases
What should you do when it goes pear shaped? Default behaviour is Ignore and Continue $ErrorActionPreference -ErrorAction try{} catch{}
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Consider your outputs
Write-Host Write-Output Write-Progress Add-Content Out-File
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Have style!
Use a coding convention Naming Casing Bracing
Avoid aliases Be Consistent!
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Leverage functions for re-use
Small tasks Compose a script from functions Functions are highly reusable Cmdlet Binding Attribute Parameters Attribute Default Values
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Use configuration files
$file =[xml] (Get-ChildItem $constantsFilePath)$root = "setup-config"$ConstantsNodeList = $file.$root.Constantsforeach($property in $ConstantsNodeList.Property) {
$key= $property.Key$value=$property.Value $webApp.Properties.Add($key,$value)
}$webApp.Update()
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Script Examples
Wrap up
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Start scripting, it’s easy!
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Handy resources
http://blogs.technet.com/b/heyscriptingguy http://gallery.technet.microsoft.com/scriptcenter http://social.technet.microsoft.com/Forums/scriptcenter/
en-US/home?forum=ITCG http://ss64.com/ps/ http://ss64.com/ps/syntax.html
Any questions?
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