PowerShell In-depth

Table of Contents

This chapter covers fundamental concepts of PowerShell for writing PowerShell scripts.

File Name Extension

• File Name Extension

Comment

• Comment Syntax

Object and Type

• Object Type, Properties, Methods

Path

• Path parameter
• Path Expansion
• LiteralPath parameter
• Path Operations

Pipe

• Pipe
• Pipeline Commands

Number

• Number Input
• Arithmetic Operators

String

• String
• Single Quoted String
• Double Quoted String
• Here-String
• Escape Characters
• String Length
• Join String
• Split String
• Format String
• String Methods
• String Wildcards
• Regular Expression Operators
• Regex Result ($Matches)
• Regular Expression Syntax

Variable

• Assignment Operators
• Variable
• Automatic Variables

Boolean

• True, False (boolean)
• Boolean Operators
• Test Equality
• Test Order (Greater, Lesser)

Conditional

• If Then Else (Flow Control)

Data Structure

Array

• Array
• Array Sub-Expression Operator, Collection to Array
• Array and Types
• Nested Array, Multi-Dimensional Array
• Array, Get Items
• Array, Set Item
• Test If Collection Contains a Value
• Join Array, Append
• Filter Array (where)
• Delete Array, Clear Array
• Array to String
• Array Methods
• Iterate Array

Hashtable, Dictionary

• Hashtable, Dictionary
• Hashtable: Get Key Value, Add, Remove
• Join Hashtables
• Hashtable Key / Property Name Clash
• Hashtable Get All Keys
• Sort Hashtable
• Hashtable Methods
• Iterate Hashtable

Loop, Iteration

• Loop, Iteration

Input, Output

• Print
• Prompt User for Input
• Read File
• Write to File

Function

• Define Function
• Function Return Value and Statement
• Function Parameters
• Define Function to Accept Pipe
• Function Inline Doc
• Allowed Characters in Function Name

Error

• throw error

Profile and Script

• Profile (init file)
• Create a Script
• Load a Script
• Eval Variable, String, ScriptBlock
• Get Current Script Path

Misc

• Timing, Benchmark Speed
• What is Cmdlet
• What is Provider, Datastore