PowerShell: Automation for Everyone

PowerShell: Automation for Everyone

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  Gavin Barron, SolutionArchitect March 22, 2014 ComCamp Auckland PowerShell: Automation for Everyone
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  The only fivecommands you need Rules for writing scripts Demos Intro Wrap up Our agenda
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  PowerShell: Automation forEveryone | 3  SharePoint Server MVP  Developer  Skier  http://gavinb.net  @gavinbarron  gavin.barron@intergen.co.nz Gavin Barron Solution Architect Your presenter
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  PowerShell: Automation forEveryone | 4 Why Automate?  Repeatability  Reliability  Save time?  Eliminate boring manual tasks
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  PowerShell: Automation forEveryone | 5 Why PowerShell?  Product specific cmdlets  Able to run .NET code  Hooks into WMI/COM  Object pipeline  Readable scripts
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  The only five commandsyou need
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Get-Command
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Get-Help
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Get-Member
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Where-Object
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} ForEach-Object
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  Demos
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Find the command you need
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Simple Pipeline Use
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  PowerShell: Automation forEveryone | 15 File renaming in .bat @echo off for /f "delims=" %%a in ('dir /b *.txt') do call :dot "%%a" pause goto :EOF :dot set "var=%~n1" set "var=%var:.=_%" echo ren %1 "%var%%~x1"
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  Rules for writing scripts
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  PowerShell: Automation forEveryone | 17 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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  PowerShell: Automation forEveryone | 18 Consider your outputs  Write-Host  Write-Output  Write-Progress  Add-Content  Out-File
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  PowerShell: Automation forEveryone | 19 Have style!  Use a coding convention  Naming  Casing  Bracing  Avoid aliases  Be Consistent!
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  PowerShell: Automation forEveryone | 20 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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  PowerShell: Automation forEveryone | 21 Use configuration files $file =[xml] (Get-ChildItem $constantsFilePath) $root = "setup-config" $ConstantsNodeList = $file.$root.Constants foreach($property in $ConstantsNodeList.Property) { $key= $property.Key $value=$property.Value $webApp.Properties.Add($key,$value) } $webApp.Update()
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Script Examples
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  Wrap up
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  Your Awesome PresentationTitle {Segoe UI 12 pt.} Start scripting, it’s easy!
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  PowerShell: Automation forEveryone | 25 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
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  Any questions?
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  Email: gavin.barron@intergen.co.nz Blog: http://gavinb.net Twitter:@gavinbarron Thank you