Programming Fundamentals/Variables/PowerShell

variables.ps1

Write-Host "Variables and Data Types"
$i = 12345
$f = 1.23456789012345
$s = "string"

Write-Host "i: $i"
Write-Host "f: $f"
Write-Host "s: $s"
Write-Host

Write-Host "Constants"
New-Variable -Name 'PI' -Value 3.14159 -Option Constant
New-Variable -Name C -Value "Constant" -Option Constant
Write-Host $PI "  " $C
Write-Host

Write-Host "Arithmetic Operators"
$a = 3
$b = 2
Write-Host "a = $a"
Write-Host "b = $b"
Write-Host "a + b =" ($a + $b) 
Write-Host "a - b =" ($a - $b) 
Write-Host "a * b =" ($a * $b) 
Write-Host "a / b =" ($a / $b) 
Write-Host

Write-Host "Assignment Operators"
$a += $b
Write-Host "a += b is $a"
$a -= $b
Write-Host "a -= b is $a"
$a *= $b
Write-Host "a *= b is $a"
$a /= $b
Write-Host "a /= b is $a"
Write-Host

Write-Host "String Concatenation"
$s1="Hello"
$s2="world"
Write-Host $s1 $s2"!"
Write-Host 

Write-Host "User Input"
$name = Read-Host "Enter your name" 
Write-Host "Hello" $name"!"

Try It

Copy and paste the code above into one of the following free online development environments or use your own PowerShell compiler / interpreter / IDE.

Online

• TutorialsPoint
  • Type the following as the first two commands to access the PowerShell console:
        export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/lib64
    powershell

Windows

• Microsoft:Starting Windows PowerShell

OS X / macOS / Linux

• HowToGeek: How to Install Microsoft PowerShell on Linux or OS X

See Also

• Windows PowerShell