![Variables: A place to store stuff
Use $ to create and use
variables
Can contain letters, numbers,
spaces and underscores
Dont persist after Shell exits
New-Variable
Set-Variable
Get-Variable
Clear-Variable
Remove-Variable
Can force a type [int]$var
Note: The $ is not part of the variable
name, its a cue to access the contents
of the variable](https://image.slidesharecdn.com/08-gettingpreparedforautomation-131218075036-phpapp01/85/08-getting-prepared-for-automation-6-320.jpg)
More Related Content
Similar to 08 getting prepared for automation (20)
Recently uploaded (20)
08 getting prepared for automation
- 1. 08 | Getting prepared for automation Jeffrey Snover | Distinguished Engineer & Lead Architect Jason Helmick | Senior Technologist, Concentrated Technology
- 2. Course Topics Getting Started with PowerShell 01 | Dont fear the shell 06 | The pipeline : Deeper 02 | The Help system 07 | The Power in the Shell - Remoting 03 | The pipeline : Getting connected 08 | Getting prepared for automation 04 | Extending the shell 09 | Automation in scale - Remoting 05 | Objects for the Admin 10 | Introducing scripting and toolmaking
- 3. Module Overview PowerShell security goals Execution Policy Variables : a place to store stuff Fun with Quotes Getting and displaying input Other output for scripts and automation
- 4. PowerShell security goals Secured by default Prevents mistakes by unintentional admins and users No Script Execution .Ps1 associated with notepad Must type path to execute a script
- 5. Execution Policy By default, PowerShell does not run scripts. Get/Set-ExecutionPolicy Restricted Unrestricted AllSigned RemoteSigned Bypass Undefined Can be set with Group Policy
- 6. Variables: A place to store stuff Use $ to create and use variables Can contain letters, numbers, spaces and underscores Dont persist after Shell exits New-Variable Set-Variable Get-Variable Clear-Variable Remove-Variable Can force a type [int]$var Note: The $ is not part of the variable name, its a cue to access the contents of the variable
- 7. Fun with Quotes Double Quotes resolve all variables Can use Sub-Expressions Single Quotes prevent substitution Get-Help About_Quoting_Rules Back-tick/Grave-Accent prevents individual substitution
- 8. Getting and displaying input
- 9. Other output for scripts and automation Write-Warning Write-Verbose Write-Debug Write-Error $Preference variables to know Help about_Preference_Variables $DebugPreference=SilentlyContinue $ErrorActionPreference=Continue #VerbosePreference=SilentlyContinue
- 11. 息2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, Office, Azure, System Center, Dynamics and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.