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sanderstadsanderstad
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Added demos for PowerShell - Grow Your Script From Simple to Module
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‎PowerShell - Grow Your Script From Simple to Module/Demo/1_Demo_Parameters.ps1

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# Get to the presentation directory
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Set-Location "Presentations:\__Original\PowerShell - Grow Your Script From Simple to Module\Demo"
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# Execte the raw script
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.\1_Demo_Parameters_01_RawScript.ps1
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# Execute the parameterized script
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.\1_Demo_Parameters_02_ParametersUsed.ps1 -FileCount 10 -Destination C:\temp\demo
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# Failed attempt with an invalid file count
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.\1_Demo_Parameters_03_Validation.ps1 -FileCount 30 -Destination C:\temp\demo -DeleteFiles
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# Failed attempt with an invalid destination
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.\1_Demo_Parameters_03_Validation.ps1 -FileCount 20 -Destination C:\temp\demo2 -DeleteFiles
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# Failed attempt with an invalid extension
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.\1_Demo_Parameters_03_Validation.ps1 -FileCount 20 -Destination C:\temp\demo -Extension bat -DeleteFiles
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# Execute the script with functions
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.\1_Demo_Parameters_04_FunctionsImplemented.ps1
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‎PowerShell - Grow Your Script From Simple to Module/Demo/1_Demo_Parameters_01_RawScript.ps1

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[int]$fileCount = 15
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[string]$destination = "C:\temp\demo"
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[string]$extension = 'txt'
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[switch]$deleteFiles = $true
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# Test if destination exists
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if(-not (Test-Path $destination)){
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Write-Host "Creating destination directory..."
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# Try to create destination directory
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try{
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New-Item -Path $destination -ItemType Directory
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}
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catch{
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Write-Error "Couldn't create directory $destination.`n$_"
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}
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}
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# Checking if files need to be deleted
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if($deleteFiles){
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Write-Host "Deleting files..."
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$item = Get-ChildItem -Path $destination
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# Check if there are any items in the directory
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if($item.Count -ge 1){
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try{
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Remove-Item -Path "$destination\*.*"
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}
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catch{
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Write-Error "Couldn't remove files.`n$_"
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}
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}
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}
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Write-Host "Create files..."
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for($i = 0; $i -lt $fileCount; $i++){
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# Generate random string
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[string]$random = -join ((65..90) + (97..122) | Get-Random -Count 10 | Foreach-Object {[char]$_})
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# Setup the new file path
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$newFilePath = "$destination\File_$random.$extension"
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# Try to create the file
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try{
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New-Item -Path $newFilePath -ItemType File
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}
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catch{
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Write-Error "Couldn't create file $newFilePath.`n$_"
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}
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}
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‎PowerShell - Grow Your Script From Simple to Module/Demo/1_Demo_Parameters_02_ParametersUsed.ps1

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param(
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[Parameter(Mandatory = $true)]
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[int]$FileCount,
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[Parameter(Mandatory = $true)]
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[string]$Destination ,
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[string]$Extension = 'txt',
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[switch]$DeleteFiles
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)
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# Test if destination exists
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if(-not (Test-Path $Destination)){
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Write-Host "Creating destination directory..."
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# Try to create destination directory
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try{
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New-Item -Path $Destination -ItemType Directory
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}
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catch{
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Write-Error "Couldn't create directory $Destination.`n$_"
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return
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}
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}
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# Checking if files need to be deleted
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if($DeleteFiles){
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Write-Host "Deleting files..."
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$item = Get-ChildItem -Path $Destination
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# Check if there are any items in the directory
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if($item.Count -ge 1){
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try{
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Remove-Item -Path "$Destination\*.*"
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}
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catch{
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Write-Error "Couldn't remove files.`n$_"
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}
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}
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}
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Write-Host "Create files..."
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for($i = 0; $i -lt $FileCount; $i++){
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# Generate random string
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[string]$random = -join ((65..90) + (97..122) | Get-Random -Count 10 | Foreach-Object {[char]$_})
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# Setup the new file path
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$newFilePath = "$Destination\File_$random.$Extension"
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# Try to create the file
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try{
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New-Item -Path $newFilePath -ItemType File
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}
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catch{
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Write-Error "Couldn't create file $newFilePath.`n$_"
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}
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}
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‎PowerShell - Grow Your Script From Simple to Module/Demo/1_Demo_Parameters_03_Validation.ps1

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param(
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[Parameter(Mandatory = $true)]
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[ValidateRange(1, 20)]
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[int]$FileCount,
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[Parameter(Mandatory = $true)]
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[ValidateNotNullOrEmpty()]
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[ValidateScript( {Test-Path -Path $_ -PathType 'Container'})]
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[string]$Destination ,
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[ValidateSet('txt', 'log')]
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[string]$Extension = 'txt',
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[switch]$DeleteFiles
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)
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# Checking if files need to be deleted
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if ($DeleteFiles) {
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Write-Host "Deleting files..."
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$item = Get-ChildItem -Path $Destination
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# Check if there are any items in the directory
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if ($item.Count -ge 1) {
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try {
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Remove-Item -Path "$Destination\*.*"
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}
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catch {
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Write-Error "Couldn't remove files.`n$_"
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}
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}
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}
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Write-Host "Create files..."
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for ($i = 0; $i -lt $fileCount; $i++) {
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# Generate random string
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[string]$random = -join ((65..90) + (97..122) | Get-Random -Count 10 | Foreach-Object {[char]$_})
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# Setup the new file path
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$newFilePath = "$Destination\File_$random.$Extension"
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# Try to create the file
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try {
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New-Item -Path $newFilePath -ItemType File
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}
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catch {
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Write-Error "Couldn't create file $newFilePath.`n$_"
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}
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}
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‎PowerShell - Grow Your Script From Simple to Module/Demo/1_Demo_Parameters_04_FunctionsImplemented.ps1

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function Invoke-DemoCreateDirectory {
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param(
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[Parameter(Mandatory = $true)]
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[string]$Directory,
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[switch]$Force
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)
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Write-Host "Creating destination directory..."
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# Try to create destination directory
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try {
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New-Item -Path $Directory -ItemType Directory -Force:$Force
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}
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catch {
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Write-Error "Couldn't create directory $Destination.`n$_"
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return
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}
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}
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function Remove-DemoCreatedFiles {
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param(
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[Parameter(Mandatory = $true)]
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[string]$Directory,
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[switch]$Force
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)
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Write-Host "Deleting files..."
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$item = Get-ChildItem -Path $Destination
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# Check if there are any items in the directory
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if ($item.Count -ge 1) {
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try {
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Remove-Item -Path "$Destination\*.*" -Force:$Force
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}
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catch {
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Write-Error "Couldn't remove files.`n$_"
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}
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}
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}
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function Get-DemoRandomString {
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param(
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[Parameter(Mandatory = $true)]
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[int]$Length = 5
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)
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# Generate random string
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[string]$random = -join ((65..90) + (97..122) | Get-Random -Count $Length | Foreach-Object {[char]$_})
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return $random
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}
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function Invoke-DemoCreateFiles {
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[cmdletbinding()]
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param(
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[Parameter(Mandatory = $true)]
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[ValidateRange(1, 20)]
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[int]$FileCount,
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[Parameter(Mandatory = $true)]
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[ValidateNotNullOrEmpty()]
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[string[]]$Destination ,
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[ValidateSet('txt', 'log')]
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[string]$Extension = 'txt',
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[switch]$DeleteFiles,
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[switch]$Force
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)
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foreach ($dest in $Destination) {
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# Checking if files need to be deleted
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if ($DeleteFiles -and ((Test-Path $dest))) {
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Remove-DemoCreatedFiles -Directory $dest -Force:$Force
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}
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# Check if path exists
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if (-not (Test-Path $dest)) {
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Invoke-DemoCreateDirectory -Directory $dest -Force:$Force
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}
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Write-Host "Create files..."
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for ($i = 0; $i -lt $FileCount; $i++) {
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# Generate random string
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[string]$random = Get-DemoRandomString -Length 5
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# Setup the new file path
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$newFilePath = "$dest\File_$random.$Extension"
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# Try to create the file
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try {
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New-Item -Path $newFilePath -ItemType File
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}
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catch {
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Write-Error "Couldn't create file $newFilePath.`n$_"
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}
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} # end for loop file count
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} # end for each destination
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} # end function
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$fileCount = 10
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$destination = "c:\temp\demo"
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$destination1 = "c:\temp\demo1"
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$destination2 = "c:\temp\demo2"
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# Get a random string
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#Get-DemoRandomString -Length 10
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# Create the demo directory
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#Invoke-DemoCreateDirectory -Directory $destination -Force
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# $3move the files from the demo directory
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#Remove-DemoCreatedFiles -Directory $destination
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# Execute the main function
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#Invoke-DemoCreateFiles -FileCount $fileCount -Destination $destination
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# Execute the script with a multiple values
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Invoke-DemoCreateFiles -FileCount $fileCount -Destination $destination1, $destination2
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‎PowerShell - Grow Your Script From Simple to Module/Demo/2_Demo_Functions.ps1

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# Execute script with first step to advanced function
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.\2_Demo_Functions_01_GettingAdvanced_Pipeline
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# Making sure the function is able to executed with a pipeline and multiple values assigned as parameter
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.\2_Demo_Functions_02_GettingAdvanced_PipelineLoop
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# Execute the functions with the -Confirm and -Whatif
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.\2_Demo_Functions_03_ConfirmAndWhatif.ps1

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