Serena

# Main script demonstrating various PowerShell features # Import utility functions . "$PSScriptRoot\utils.ps1" # Global variables $Script:ScriptName = "Main Script" $Script:Counter = 0 <# .SYNOPSIS Greets a user with various greeting styles. .PARAMETER Username The name of the user to greet. .PARAMETER GreetingType The type of greeting (formal, casual, or default). #> function Greet-User { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string]$Username, [Parameter(Mandatory = $false)] [ValidateSet("formal", "casual", "default")] [string]$GreetingType = "default" ) switch ($GreetingType) { "formal" { Write-Output "Good day, $Username!" } "casual" { Write-Output "Hey $Username!" } default { Write-Output "Hello, $Username!" } } } <# .SYNOPSIS Processes an array of items with the specified operation. .PARAMETER Items The array of items to process. .PARAMETER Operation The operation to perform (count, uppercase). #> function Process-Items { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string[]]$Items, [Parameter(Mandatory = $true)] [ValidateSet("count", "uppercase")] [string]$Operation ) foreach ($item in $Items) { switch ($Operation) { "count" { $Script:Counter++ Write-Output "Processing item $($Script:Counter): $item" } "uppercase" { Write-Output $item.ToUpper() } } } } <# .SYNOPSIS Main entry point for the script. #> function Main { [CmdletBinding()] param( [Parameter(Mandatory = $false)] [string]$User = "World", [Parameter(Mandatory = $false)] [string]$Greeting = "default" ) Write-Output "Starting $Script:ScriptName" # Use the Greet-User function Greet-User -Username $User -GreetingType $Greeting # Process some items $items = @("item1", "item2", "item3") Write-Output "Processing items..." Process-Items -Items $items -Operation "count" # Use utility functions from utils.ps1 $upperName = Convert-ToUpperCase -InputString $User Write-Output "Uppercase name: $upperName" $trimmed = Remove-Whitespace -InputString " Hello World " Write-Output "Trimmed: '$trimmed'" Write-Output "Script completed successfully" } # Run main function Main @args