Transcript Introduction to PowerShell - Agile Solutions Group -

10/29/07
Introduction to PowerShell
Brian Button
VP Engineering
Asynchrony Solutions, Inc
[email protected]
http://oneagilecoder.asolutions.com
© 2007 Asynchrony Solutions, Inc.
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Just the other day…
Visual Studio 2005
Enterprise Library
VS.Net SP1
Nunit
IIS
Xunit.net
TFS Explorer
Resharper
SQL Server 2005
Test Driven.net
GAX
GAT
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Failure!!!
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SQL Server failed to install and uninstall
What to do???
MSDN says:
• Regedit HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall
• For each GUID found, Examine DisplayName searching for match of ‘SQL
Server’
• Manually uninstall it
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Maybe there was a better way!
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What is PowerShell
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New Scripting language
• Same, but different!
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In Vista, then unbundled
• Separate download
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General purpose programming language
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Basic Tour
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Shell prompt
Cmdlets
Pipes
.Net objects
PSDrives
Help system
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5 key commands
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Get-Help
Get-Command
Get-Member
Get-Psdrive
Format-List
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Let’s build something
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Removing all bin and obj folders from project
Find all IDisposable classes in assembly
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Powershell as a programming language
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General purpose programming language
File extension PS1
Example: Reformat.PS1
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Extending Powershell
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Custom Cmdlets and PSSnapins
• Written in C# or VB.Net
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Functions, Filters, Aliases
• Written in powershell
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Adding methods, properties to existing types
• Written in XML, powershell
• Add-member
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Extending Powershell in C#/VB.Net
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Create Custom cmdlet
[Cmdlet(VerbsCommon.Get, "Proc")]
public class GetProcCommand : Cmdlet
{
}
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Create PSSnapin to install
Great tutorial at
http://blogs.msdn.com/daiken/archive/2007/02/07/creating-a-windowspowershell-cmdlet-using-the-visual-studio-windows-powershelltemplates.aspx
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Extending Powershell natively
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Functions
function to_uppercase
{
param([string]$first)
$first.ToUpper()
}
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At command line or in user profile
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Extending Powershell natively
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Aliases – make commands easier to use
• set-alias, new-alias, get-alias
Alias
Alias
Alias
Alias
Alias
© 2007 Asynchrony Solutions, Inc.
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gc
gci
gcm
gdr
Get-Alias
Get-Content
Get-ChildItem
Get-Command
Get-PSDrive
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Customizing Powershell
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User profile
• $profile
• Get-Executionpolicy
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Like .profile or .login in Linux
Invoked for every new shell
Sets up functions, aliases, etc
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Why learn Powershell
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Automate repetitive tasks
Share knowledge with others
It’s the Microsoft Way…
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Controlling Windows through Scripts
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Complaints for years about GUI-only config
• In Unix/Linux forever
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MS making admin tasks powershell-scriptable
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Exchange
SQL Server
IIS 7
More
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Resources
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Download powershell through Microsoft.com
Videos
• http://channel9.msdn.com/Media/?TagID=163
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Blogs
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http://blogs.msdn.com/powershell
http://thepowershellguy.com
http://keithhill.spaces.live.com
http://www.leeholmes.com/blog
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More resources
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Books
• Powershell in Action, Bruce Payette
• Professional Windows Powershell, Andrew Watt
• Windows Powershell Cookbook, Lee Holmes
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Community projects
• 21 projects on http://www.codeplex.com
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Q&A
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Slides posted at http://oneagilecoder.asolutions.com
Email questions to [email protected]
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