CMDLets, scripts, functions, methods and modules all make PowerShell sound very complicated however with some simple guidelines you too can become a PowerShell automation Pro!
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1. Good PowerShell EXPAND YOUR POWERSHELL SKILLZ BY KIERAN
JACOBSEN
2. Q. What makes a good piece of PowerShell code? Answer: The
style of our code, including: Function architecture Naming
Conventions Comments Use of Pipeline Error handling
3. Style Guides/conventions Style guide or coding/programming
conventions are a set of rules used when writing the source code
for a computer program [WikiPedia] Date back to the 1970s Claims to
increase readability of and understand-ability of source code, and
this reduce the chances of programming errors. Claims to reduce
software maintenance costs Software developers all work with
guides/conventions We have server naming conventions, account
naming conventions, why not scripting conventions? One of the
hardest things for any group to develop, agree upon and to stick
to
4. Script? Function? CMDLet? Module? Function: Named sections
of code CMDLet: Advanced reusable functions Script: Complex
problems solved with functions and CMDLets Module: Collections of
functions and CMDLets Libraries Configuration Application Compiled
Code Development and Distribution
5. Functions and CMDLets First Think functions not scripts Make
CMDLets not scripts Design functions and CMDLets first, then build
very simple scripts Functions should do just ONE thing
6. Naming Conventions Functions and Cmdlets - Microsoft verbs
Vs Defining your down Singular Nouns Modules Scripts Variables
Parameters Case
7. Comment Based Help Provides detailed help information on our
own CMDLets Descriptions Examples Additional Information
Links/References get-help about_comment_based_help
8. Comments When and where is appropriate Variable declarations
Complex IF/For/While/Until conditions Pipelining Input validation
Error handling Anything complex Dont over do comments for
simple/obvious lines of code.
9. Handling Errors When to catch errors When to throw errors
When to write-error Error Messages Exit codes
10. Bring on the demos!
11. Demo: Get a web page
12. Demo: Reusable Get- WebPage
13. Demo: Getting a file
14. Demo: Reusable get-webfile
15. Demo: Posting Data to a page in a reusable way
16. Demo: A tour of a Web Functions module
17. PushOver.net Provides push notification support for Android
and iOS Available from App/Play Store Applications wishing to send
notifications, simply post to API web interface or via Email
Ability to provide high, normal and low priority notifications
Ability to include a URL Alternatives are out there