Introduction To Power Shell

Introduction To Power Shell

• 1.
  Introduction to PowerShellIvanSuhininSenior Software Engineer
• 2.
  What is PowerShell?AutomationengineShell environmentScripting language
• 3.
  PowerShell as ashellA full replacement for CMDAt last something bash-like in WindowsJust… feel the power!
• 4.
  PowerShell as alanguageVariables: $a, $nameArrays: $arr = 1,2,3,4,5,6; $sarr=1..6Hashes: $h = @{“Key1" = 23; “Key2" = 894}Functions: function hi ($name) { echo "Hi, $name!" }Classes:($o = New-Object Object) |Add-Member NoteProperty Name “Bianco"
• 5.
  PowerShell as anautomation toolPredefined set of commands with lots of extensionsEasy batch operationsSimple command interconnections (pipelining)
• 6.
  Command typesCmdlets –Get-LocationFunctionsUser scripts - *.ps1Native applications (msbuild, csc)
• 7.
  CmdletsPredefined set ofcommandsForm: Verb-Noun:Get-LocationGet-ChildItemSet-LocationLong, descriptive names for scriptsAliases for daily usage
• 8.
  AliasesCreating short namesfor long cmdletsGet-Alias, Set-AliasMakes scripting more friendlyBy default has standard UNIX aliasesls, ps, pwd, date, kill, gal, pushd, popd
• 9.
  Wiring commands upPipelining:Get-Location | Get-MemberFunctional style.NET objects instead of strings (bash)Output becomes inputSelect – selecting only needed informationWhere – filtering resultsGroup – grouping resultsForEach – processing each input value
• 10.
  PowerShell providersAdapters todifferent subsystemsGet-PSProvider, Get-PSDriveDefault: WSMan, Alias, Environment, FileSystem, RegistryExtended: IIS, SQL, SharePoint, VMWare
• 11.
  Using external componentsWindowsManagement Instrumentation (WMI)gwmi win32_servicegwmi win32_operatingsystemCOM(New-Object -ComObjectWScript.Shell).Run("calc.exe")
• 12.
  Using .NETImporting assemblies:[Reflection.Assembly]::LoadWithPartialName("System.Messaging")Callingstatic methods:[System.Messaging.MessageQueue]::GetPrivateQueuesByMachine("localhost")Creating and using objects:$b = New-Object System.Text.StringBuilder$b.Append("Hello!")
• 13.
  manUltimate help systemExamplesDetailedFull
• 14.
  Demo: deleting MSMQqueues
• 15.
  Demo: sorting SQLtables by size
• 16.
  Demo: real-life deploymentscript
• 17.
  Development environmentAutocompletionTab keyWildcardsWorksfor methodsPowerShell ISEPowerGUI
• 18.
  Q & A