Building Dynamic Parameters into your PowerShell Code
In this video, PowerShell instructor Jason Yoder explains how you can add parameters into you PowerShell code. He also explains how parameters can turn your existing static code into a more dynamic scripting tool.
For instructor-led PowerShell training by Jason Yoder, see our course schedule.
Dynamic Parameters in PowerShell used in this video.
Download the DynamicParameters-in-PowerShell code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | <# ╔══════════════════════════════════════════════════════════════════════════════╗ ║ ║ ║ How to Code for Parameter Use ║ ╟──────────────────────────────────────────────────────────────────────────────╢ ║ Interface Technical Training ║ ║ Jason A Yoder ║ ║ ║ ╚══════════════════════════════════════════════════════════════════════════════╝ #> # Notice the available parameters of Get-Date Get-Date # Create a very basic function with a basic parameter. Function Test-ParameterCode { Param ($String1) Write-Host $String1 -BackgroundColor DarkGreen } # Test the function Test-ParameterCode -String1 "Jason" # Create multiple parameters Function Test-ParameterCode { Param ($String1, $Number) For ($X = 1 ; $X -le $Number ; $X++) {Write-Host $String1 -BackgroundColor DarkGreen} } # Test the function Test-ParameterCode -String1 Hello -Number 3 # Look at the help file. Get-Help Test-ParameterCode Function Test-ParameterCode { Param ( [String]$String1, [Int] $Number ) For ($X = 1 ; $X -le $Number ; $X++) {Write-Host $String1 -BackgroundColor DarkGreen} } # Look at the help file. Get-Help Test-ParameterCode # Create default values Function Test-ParameterCode { Param ( [String]$String1 = "Hello World", [Int] $Number = 5 ) For ($X = 1 ; $X -le $Number ; $X++) {Write-Host $String1 -BackgroundColor DarkGreen} } # Test the function Test-ParameterCode Test-ParameterCode -Number 2 # Learn more about Parameters Get-Help about_Parameters -ShowWindow |
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