Assignment operators in PowerShell

Introduction

Assignment operators let you store or update values in variables easily.

When you want to save a number or text to use later.

When you want to add or subtract from a value already stored.

When you want to combine text stored in variables.

When you want to quickly update a variable without rewriting it fully.

Syntax

PowerShell

$variable = value
$variable += value
$variable -= value
$variable *= value
$variable /= value
$variable %= value

The '=' operator sets a variable to a value.

Operators like '+=' add to the current value of the variable.

Examples

Sets the variable $count to 10.

PowerShell

$count = 10

Adds 5 to the current value of $count.

PowerShell

$count += 5

Sets $name to 'John' then adds ' Doe' to make 'John Doe'.

PowerShell

$name = "John"
$name += " Doe"

Sample Program

This script shows how to set and update numbers and text using assignment operators.

PowerShell

$score = 20
$score += 10
$score -= 5
$message = "Hello"
$message += ", World!"
Write-Output "Score: $score"
Write-Output "Message: $message"

Important Notes

Assignment operators work with numbers and strings in PowerShell.

Using '+=' with strings joins them together.

Be careful with division and modulo operators to avoid errors with zero.

Summary

Assignment operators store or update values in variables.

Use '=' to set a value, and operators like '+=' to add or combine.

They make scripts shorter and easier to read.