2.2. Branching Instructions
Branching instructions bear that name, because they split program execution according to a conditional statement. Typically they specify several possible execution flows. At the time of execution, a statement is evaluated, and a code path is chosen according to the value returned from that statement. PowerShell offers two branching instructions: if/else that allows us to choose one of two code paths, and switch that selects and executes one of many alternatives.
2.2.1. Simple Branching: if/else
The simplest branching instruction in many mainstream programming languages is the if statement. It evaluates a conditional expression and executes one block of code if the result is true, another if false. The general form ...
Get Pro Windows PowerShell now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.