PowerShell in 10 Minutes

 Ownership of Microsoft· Scripting language designed especially for system administrators.

· Targeted for management and administration systems

· Object Oriented based pipelines

· Perform C #, WMI, XML, Active Directory and. NET

WORK ENVIRONMENT

console
• Lets you run PowerShell cmdlets

http://powershellpt.files.wordpress.com/2013/01/clip_image0044_thumb.jpg?w=244&h=84&h=84

Editors Scripts
· Allow execute PowerShell cmdlets

· Provide intellisense

· They add colors for easier reading of code

· Information about cmdlets available

· Examples: PowerGUI and PowerShell ISE (Native)

http://powershellpt.files.wordpress.com/2013/01/clip_image0064_thumb.jpg?w=244&h=132&h=132

Run external scripts
• The default policy has PowerShell Script Execution strict, not allowing any external script.

• We need to change the execution policy scripts

One. Open the console in administrator mode

2nd. Run the following command:

Set-ExecutionPolicy-ExecutionPolicy Unrestricted

*** ***Different types of policies

SYNTAX OF POWERSHELL

variables
Defined with the prefix $

example:

$ var1 = “Rui”

pipelines
• Allow use the output of an invocation in PowerShell (cmdlet, function) as input to another invocation.

• Greatest strength of PowerShell

• Simplify code

• Represented as “|”

• Allow access to the element that is in the pipe through command $ _

http://powershellpt.files.wordpress.com/2013/01/clip_image0094_thumb.png?w=244&h=49&h=49

Cmdlets (command-lets)
• Functions that encapsulate code

• Simple syntax, verb-name (Get-Process, Set-Partition, etc. ..)

• Ability to contain parameters

• Parameters defined prefix “-”, which may be positional ie after a specific position.

example:

Alias ​​Cmdlet
• Names simplified for faster writing a cmdlet.

• Example:

http://powershellpt.files.wordpress.com/2013/01/clip_image0174_thumb.png?w=244&h=54&h=54

Print to console
• Allows you to print a variable, return a cmdlet or function to the PowerShell console.

http://powershellpt.files.wordpress.com/2013/01/clip_image0194_thumb.jpg?w=244&h=40&h=40http://powershellpt.files.wordpress.com/2013/01/clip_image0214_thumb.jpg?w=244&h=42&h=42

Read console
• Allows you to read a value from the PowerShell console.

http://powershellpt.files.wordpress.com/2013/01/clip_image0234_thumb.jpg?w=244&h=37&h=37

get Help
• Cmdlet which gives help on the commands and their respective parameters.

• Write in the console followed by the Get-Help command

example:

http://powershellpt.files.wordpress.com/2013/01/clip_image0254_thumb.jpg?w=244&h=33&h=33

Comparison operators

Logical operators

Booleans

Arrays e Hashmaps

http://powershellpt.files.wordpress.com/2013/01/image_thumb.png?w=644&h=72&h=72

$nomes= @{"First" = "Rui"; "Middle" = "Pedro"; "Last" =  "Machado"}

If-then-else

logical routine that allows you to create a scenario with two possible executions due to the validation of a condition.

example:

http://powershellpt.files.wordpress.com/2013/01/clip_image0364_thumb.jpg?w=244&h=159&h=159

foreach

logical routine that lets you scroll through all objects stored in a variable with one or more dimensions

example:

http://powershellpt.files.wordpress.com/2013/01/clip_image0384_thumb.jpg?w=244&h=92&h=92

foreach a pipeline

logic that allows traverse all objects stored in a variable in one or more dimensions passed into a pipeline

example:

NOTE: This cmdlet has an alias often used “%” ie we can replace the foreach by%http://powershellpt.files.wordpress.com/2013/01/clip_image0404_thumb.jpg?w=244&h=92&h=92

REUSE OF CODE

functions

• encapsulate code

• Create custom cmdlets

• Ability to contain parameters

http://powershellpt.files.wordpress.com/2013/01/clip_image0424_thumb.jpg?w=244&h=63&h=63

Saving a Script
• Easy to edit scripts

�� Enable reuse scripts

• Extension. ps1

• Allow import of scripts for later reuse functions

http://powershellpt.files.wordpress.com/2013/01/clip_image0444_thumb.jpg?w=86&h=80&h=80http://powershellpt.files.wordpress.com/2013/01/clip_image0454_thumb.png?w=68&h=71&h=71http://powershellpt.files.wordpress.com/2013/01/clip_image0474_thumb.jpg?w=244&h=64&h=64

Reuse a script

1. Import the script that has the function you want to use
2. Use it as any other cmdlet

• Allow you to reuse code

http://powershellpt.files.wordpress.com/2013/01/clip_image0494_thumb.jpg?w=244&h=40&h=40

Chamar função .net

• Add the DLL namespace between square brackets

• At C++ style, just add :: followed by the function you want to call

Example:

http://powershellpt.files.wordpress.com/2013/01/clip_image0514_thumb.jpg?w=244&h=38&h=38http://powershellpt.files.wordpress.com/2013/01/clip_image0534_thumb.jpg?w=244&h=29&h=29

More Info

• http://technet.microsoft.com/en-us/scriptcenter/dd742419.aspx

• http://technet.microsoft.com/pt-br/library/bb978526.aspx

• http://technet.microsoft.com/pt-br/library/dd367858(v=WS.10).aspx

• http://poshcode.org/3654

• http://powershellbooks.com/

• http://www.windowsitpro.com/topics/powershell-scripting/don-jones-on-powershell

See Also

• PowerShell Portal
• Wiki: Portal of TechNet Wiki Portals

Aboute me

http://powershellpt.files.wordpress.com/2013/01/clip_image0554_thumb.jpg?w=113&h=113&h=113

Rui Pedro Machado

Graduation in Technologies and Information Systems

Post Graduation in Business Intelligence

Software Engineer at DevScope (www.devscope.net)

Blog: http://rpmachado.wordpress.com

Facebook: http://facebook.com/ruimachado89

Linkedin: http://www.linkedin.com/in/rpmachado