![DATA TYPES
A data type is an attribute of data which tells the
compiler or interpreter how the programmer
intends to use the data.
Data types defines the operations that can be
done on the data
Data Type Description Example
[string] Text String Hello World
[char] Symbol =
[bool] Boolean $true
[int] Integer 32 Bit 235235345
[long] Integer 64 Bit 2352353457
[decimal] 128 Bit Decimal 23523.53456d
[DateTime] Date And Time 26/07/19 10:30
[array] A series of objects all of
which are the same size
and type
“One”,”Two”,”Three”
And More!](https://image.slidesharecdn.com/psws-190718102013/85/PowerShell-Zero-To-Hero-Workshop-10-320.jpg)
PowerShell Zero To Hero Workshop!
- 1. POWERSHELL ZERO TO HERO! PRESENTED BY :- DAISY OLIVIA STEVENS DATE: 16/07/2019
- 2. THE AGENDA! TOOLING FUNDAMENTALS CONSTRUCTION
- 3. MEET THE PRESENTER I have worked in the majority of all market sectors within tech functions for over 10 years My Specialties are:- Networking (Multi-vendor full stack) Cloud (Public and Private) VMware, Hyper-V and Citrix Azure, AWS, GCP Storage (Dell EMC / HP etc) Deployment Automation (Windows / Linux) Social LinkedIn :- https://www.linkedin.com/in/theheroic/ Instagram :- https://www.instagram.com/daisyoliviastevens/ WordPress :- https://adminscriptbank.wordpress.com/
- 4. WHAT IS POWERSHELL? PowerShell is an automated task framework from Microsoft, with a command line shell and a scripting language integrated into the .NET framework. PowerShell is used to automate batch process’s and perform administrative tasks in Windows, Linux and MacOS environments. Windows PowerShell executes four types of commands: Cmdlets PowerShell functions PowerShell scripts Executable programs
- 5. TOOLING A GREAT TOOL IMPROVES THE WAY YOU THINK!
- 6. TOOLING - VSCODE Visual Studio Code is a source-code editor developed by Microsoft for Windows, Linux and macOS. With a large array of features to enhance your development experience such as :- Intellisence Refactoring Debugging Version Control Terminal Integration Multi Language Support (15+)
- 7. TOOLING – NOTEPAD++ Notepad++ is a free (as in "free speech" and also as in "free beer") source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment Syntax Highlighting and Syntax Folding PCRE (Perl Compatible Regular Expression) Search/Replace GUI entirely customizable: minimalist, tab with close button, multi-line tab, vertical tab and vertical document list Document Map Auto-completion: Word completion, Function completion and Function parameters hint Multi-Document (Tab interface) Multi-Language environment supported Bookmark Macro recording and playback
- 8. TOOLING – POWERSHELL ISE The Windows PowerShell Integrated Scripting Environment (ISE) is a host application for Windows PowerShell. In the ISE, you can run commands and write, test, and debug scripts in a single Windows- based graphic user interface. Context-sensitive help Selective execution Multiline editing
- 9. FUNDAMENTALS TALK IS CHEAP SHOW ME THE CODE! – LINUS TORVADS
- 10. DATA TYPES A data type is an attribute of data which tells the compiler or interpreter how the programmer intends to use the data. Data types defines the operations that can be done on the data Data Type Description Example [string] Text String Hello World [char] Symbol = [bool] Boolean $true [int] Integer 32 Bit 235235345 [long] Integer 64 Bit 2352353457 [decimal] 128 Bit Decimal 23523.53456d [DateTime] Date And Time 26/07/19 10:30 [array] A series of objects all of which are the same size and type “One”,”Two”,”Three” And More!
- 11. OBJECTS / VARIABLES PowerShell lets you create named objects known as variables. Variable names can include the underscore character and any alphanumeric characters. When used in PowerShell, a variable is always specified using the $ character followed by variable name. Within PowerShell you have also have global and local variables: Global variables are declared outside any function, and they can be accessed (used) on any function in the program Local variables are declared inside a function, and can be used only inside that function. It is possible to have local variables with the same name in different functions.
- 12. FUNCTIONS A function is a list of PowerShell statements that has a name that you assign. When you run a function, you type the function name. The statements in the list run as if you had typed them at the command prompt. Like cmdlets, functions can have parameters. The parameters can be named, positional, switch, or dynamic parameters. Function parameters can be read from the command line or from the pipeline.
- 13. IF Every programming and scripting language has had some sort of way to perform a conditional operation using an If statement as part of flow control in a script or program. You can use the If statement to run code blocks if a specified conditional test evaluates to true. You can also specify one or more additional conditional tests to run if all the prior tests evaluate to false
- 14. TRY Handle a terminating error (exception) within a script block. Use the Try block to define a section of a script in which you want PowerShell to monitor for errors. When an error occurs within the Try block, the error is first saved to the $Error. PowerShell then searches for a Catch block to handle the error. After a Catch block is completed, the Finally block is run.
- 15. LOOP It is a fundamental concept of any programming language PowerShell loops, at their most basic, simply repeat the same set of commands a set number of times.
- 16. STRUCTURE Structured programming is a subset of procedural programming that enforces a logical structure on the program being written to make it more efficient and easier to understand and modify. Structured programming frequently employs a top- down design model, in which developers map out the overall program structure into separate subsections. Remember be consistent! Naming Conventions, Indentation, Capitalisation • Comment Block • Comment Based Help Header • $UserName • $UserAge Input Params • $Global:UDateTime = get-date • $Env:ComputerName Global Params • Function Get-CompName {write-host “The Computer Name is $Env:ComputerName”} Functions • Get-ComputerName Call Stack • Write-host “The Script Has Now Finished Executing!” Script End
- 17. CONSTRUCTION LET’S GO INVENT TOMORROW INSTEAD OF WORRYING ABOUT WHAT HAPPENED YESTERDAY. – STEVE JOBS
- 18. HELLO WORLD!
- 19. HELLO WORLD – FORMATTED!
- 20. HELLO WORLD – STRUCTURED!
- 21. HELLO WORLD – LOOP!
- 22. HELLO WORLD – IF! Array Size Count Greater Than 4 Array Size Count Less Than 4
- 23. HELLO WORLD – TRY! No Error! Invoked Error!
- 24. RESOURCE LINKS VSCODE https://code.visualstudio.com/ Data Type Detail https://ss64.com/ps/syntax-datatypes.html Microsoft PowerShell Help Documentation https://docs.microsoft.com/en- gb/powershell/scripting/overview?view=powershell -6
- 25. THANK YOU DAISYSTEVENS100@OUTLOOK.COM ADMINSCRIPTBANK.WORDPRESS.COM/ MOBILE UK: +44 (0) 7757 998 750 MOBILE RO: +40 (0) 7846 784 65