PowerShell Slides

Varun Varghese +91 9986599326 [email protected] 1

What’s PowerShell• Scripting Environment• Scripting Language• Windows equivalent of UNIX Shell Script (but even more powerful)


Interactive Shell


History


Versions


.Net Framework


Installing the latest versionhttps://www.microsoft.com/en-us/download/details.aspx?id=46889

https://www.microsoft.com/en-us/download/details.aspx?id=46889

https://www.microsoft.com/en-us/download/details.aspx?id=46889


ISE – The PowerShell IDE


Case InsensitiveGet-serviceget-serviceGet-Service


Installing/Accessing PowerShell


Updating the help in PowerShell


Get help in PowerShellGet-Help


Execution Policy


Get & Set CmdletsGet-<Command>Set-<Command>


Comments


Writing to Console


Clear Screen


Aliases


Variables


Data types


Pipelining

.Net objects passed down the pipeline


Listing directory Contents


Recursive listing


ErrorAction SilentlyContinue


Looping using Foreach-Object


Filtering using Where-Object


Sorting using Sort-Object


PowerShell v/s UNIX Shell


Assignment Operators=+=-=*=/=%=++--


Comparison Operators-eq-ne-gt-ge-lt-le-replace-contains-notcontains-in-notin-match-notmatch-like-notlike

-is-isnot-as


Comparison Operators: -eq, -ne


Comparison Operators: -gt, -ge


Comparison Operators: -lt, -le


Comparison Operators: -replace


Comparison Operators: -contains, -notcontains


Comparison Operators: -in, -notin


Comparison Operators: -match, -notmatch


Comparison Operators: -like, -notlike


Comparison Operators: -is, -isnot


Comparison Operators: -as


Logical Operators


Split, Join, foreach


Casting


Redirection Operators


Handling arrays


Dictionary/hash tables


Object Properties


Object Methods


String manipulation


Sorting Objects


PowerShell automatic variables


Searching filesystem using PS


Getting System processes


Getting list of services


Filtering objectshttps://technet.microsoft.com/en-us/magazine/2007.04.powershell.aspx

http://windowsitpro.com/powershell/powershell-basics-filtering-objects

http://www.howtogeek.com/138324/geek-school-learning-formatting-filtering-and-comparing-in-powershell/

http://searchwindowsserver.techtarget.com/feature/Filtering-output-from-Windows-PowerShell

https://technet.microsoft.com/en-us/magazine/2007.04.powershell.aspx

https://technet.microsoft.com/en-us/magazine/2007.04.powershell.aspx









Copying files/directories


Reading from file


Writing to file


Appending to a file


Deleting file/directory


Renaming a file/directory


Reading from Excel


Reading from CSV


Writing to CSV


Writing to Excel


Export-CSV


Reading large files


Exporting as CSV


Importing CSV


Appending to file


User defined Functions

http://windowsitpro.com/windows/create-your-own-powershell-functions


Param in functions


Passing parameters to functions


Parameters from Pipeline


Error Handling


Logging Error


Exception Handlinghttp://www.vexasoft.com/blogs/powershell/7255220-powershell-tutorial-try-catch-finally-and-error-handling-in-powershell

http://blogs.msdn.com/b/kebab/archive/2013/06/09/an-introduction-to-error-handling-in-powershell.aspx

http://blogs.technet.com/b/heyscriptingguy/archive/2014/07/09/handling-errors-the-powershell-way.aspx

http://www.vexasoft.com/blogs/powershell/7255220-powershell-tutorial-try-catch-finally-and-error-handling-in-powershell










Output formattinghttps://technet.microsoft.com/en-us/library/dd347677.aspx

https://technet.microsoft.com/en-us/magazine/2008.06.windowspowershell.aspx

http://www.computerperformance.co.uk/powershell/powershell_format_table.htm

http://www.computerperformance.co.uk/powershell/powershell_-f_format.htm

http://blogs.technet.com/b/heyscriptingguy/archive/2011/02/23/format-powershell-output-with-an-easy-to-use-table.aspx

http://windowsitpro.com/powershell/powershell-basics-formatting

https://technet.microsoft.com/en-us/library/dd347677.aspx














Advanced formatting


Redirecting formatted output


Modules


Navigating the Registry


Regex


Starting a new Job


WMI• Windows Management Interface• Created by Microsoft• Is Microsoft’s implementation of CIM• CIM is the super class for WMI. Eq Win32_DiskDrive is derived from CIM_DiskDrive• Doesn’t work with the routers, switches or other network devices• Doesn’t support discoverabilty


WMIhttp://blogs.technet.com/b/heyscriptingguy/archive/2009/08/05/hey-scripting-guy-can-windows-powershell-call-wmi-methods.aspx

http://www.computerperformance.co.uk/powershell/powershell_wmi.htm

http://www.darkoperator.com/blog/2013/2/6/introduction-to-wmi-basics-with-powershell-part-2-exploring.html

http://www.lazywinadmin.com/2015/03/standard-and-advanced-powershell.html

WMI Administrative Toolshttp://www.microsoft.com/en-us/download/details.aspx?id=24045

Windows COM (Component Object Model)

http://blogs.technet.com/b/heyscriptingguy/archive/2009/08/05/hey-scripting-guy-can-windows-powershell-call-wmi-methods.aspx










http://www.microsoft.com/en-us/download/details.aspx?id=24045

http://www.microsoft.com/en-us/download/details.aspx?id=24045


WMI ExplorerDownload WMI Explorer from https://wmie.codeplex.com/


WQL (WMI Query Language)


CIM• Common Information Model• Set up by DTMF (Desktop Management Task Force)• http://www.dmtf.org/standards/cim• An open model compared to WMI• Common model for managing systems, switches, routers and other n/w

devices• Enables extension of the API by vendors• The goal is to make PowerShell the platform to manage both windows & non-

windows • Faster than WMI

“CIM provides a common definition of management information for systems, networks, applications and services, and allows for vendor extensions. CIM’s common definitions enable vendors to exchange semantically rich management information between systems throughout the network.”

http://www.dmtf.org/standards/cim

http://www.dmtf.org/standards/cim


PS Provider• Its an interface• It makes any storage look like a disk drive

• Could be filesystem, registry• Providers are used to create drives


https://technet.microsoft.com/en-us/library/ee126186(v=vs.85).aspx


https://technet.microsoft.com/en-us/library/ee176857.aspx

PS Provider








PS DriveA PowerShell Drive is some sort of a storage adapted to look like a disk drive


PS Drive


New-PSDrive


Administration Automation


Connecting to SQL Server


Creating Database, Tables in SQL


Importing data into SQL Server


Connecting to Remote machines


Importing libraries


OOP in PowerShellhttps://psclass.codeplex.com/

Documents

PowerShell Slides