Chapter1: Write a basic powershell script

The following items will be introduced in the following section:

• 1.Parameters

1.Parameters

• powershell用param來定義參數

  • 例如

      param (
          [string]$price = 100, 
          [string]$ComputerName = $env:computername,    
          [string]$username = $(throw "-username is required."),
          [string]$password = $( Read-Host -asSecureString "Input password" )
          [switch]$SaveData = $false
      )
      write-output "First argument is $price"
      write-output "Second argument is $ComputerName"
      write-output "The True/False switch argument is $SaveData"

  • 呼叫方法可為:

     .\demo.ps1 -ComputerName "\\server64" -SaveData

    • or setting -SaveData to $FALSE:

       .\demo.ps1 -ComputerName "\\server64" -SaveData:$false

• Parameter Attributes

  • 例如

      [Parameter(Mandatory = $true)] 

    • Mandatory

      • 參數是否必備: $true-設為必備/ $false-設為option