PowerShell

$name = "Sufi"
$age = 30
$active = $true

# Arrays & Hash Tables $fruits = @("apple", "banana", "cherry") $fruits[0] # apple $fruits.Count # 3

$person = @{ Name = "Sufi"; Age = 30 } $person.Name # Sufi $person.Keys # Name, Age

# String operations "Hello, $name!" "Name: $($name.ToUpper())"

# Environment variables $env:USERPROFILE $env:PATH ```

# Verb-Noun naming convention
Get-Process
Get-Process -Name "chrome"
Stop-Process -Name "notepad" -Force
Get-Service | Where-Object Status -eq "Running"

# Pipeline chaining Get-Process | Where-Object { $_.CPU -gt 10 } | Sort-Object CPU -Descending | Select-Object Name, CPU, WorkingSet -First 10 | Format-Table -AutoSize

# Common file cmdlets Get-ChildItem C:\ -Recurse -Filter "*.log" Get-Content .\log.txt Set-Content .\output.txt -Value "Hello" Add-Content .\log.txt -Value "New line" Copy-Item source.txt destination.txt Remove-Item old_file.txt -Force New-Item -ItemType Directory -Path ".\reports"

# Getting help Get-Help Get-Process -Examples Get-Command *-Service ```

function Get-UserInfo {
    param(
        [Parameter(Mandatory)]
        [string]$Username,
        [int]$MaxResults = 10,
        [switch]$IncludeGroups
    )

Write-Verbose "Looking up $Username..." $user = Get-ADUser -Identity $Username -Properties * if ($null -eq $user) { Write-Error "User '$Username' not found"; return }

return [PSCustomObject]@{ Name = $user.DisplayName Email = $user.EmailAddress Enabled = $user.Enabled } }

foreach ($server in $servers) { if (Test-Connection $server -Quiet) { Write-Host "$server is online" -ForegroundColor Green } else { Write-Warning "$server is offline" } }

switch ($errorCode) { 200 { "OK" }; 404 { "Not Found" }; 500 { "Server Error" } default { "Unknown: $errorCode" } } ```

# File operations
$files = Get-ChildItem -Path "C:\Logs" -Filter "*.log" -Recurse
$files | Where-Object { $_.LastWriteTime -lt (Get-Date).AddDays(-30) } |
    Remove-Item -Verbose

# CSV $data = Import-Csv .\employees.csv $data | Where-Object Department -eq "Engineering" | Measure-Object Salary -Average -Sum $results | Export-Csv .\report.csv -NoTypeInformation

# JSON $config = Get-Content .\config.json | ConvertFrom-Json $config.database.host $config | ConvertTo-Json -Depth 5 | Set-Content .\config.json

# Registry $regPath = "HKLM:\SOFTWARE\MyApp" New-Item -Path $regPath -Force Set-ItemProperty -Path $regPath -Name "Version" -Value "2.0" Get-ItemProperty -Path $regPath ```

# Connect to Azure
Connect-AzAccount
Set-AzContext -SubscriptionId "your-sub-id"

$vm = Get-AzVM -ResourceGroupName "prod-rg" | Where-Object PowerState -eq "VM running"

# Azure Storage cleanup $ctx = New-AzStorageContext -StorageAccountName "myaccount" -UseConnectedAccount Get-AzStorageBlob -Container "logs" -Context $ctx | Where-Object { $_.LastModified -lt (Get-Date).AddDays(-90) } | Remove-AzStorageBlob

# Bulk user creation Import-Module ActiveDirectory $newUsers = Import-Csv .\new_employees.csv foreach ($u in $newUsers) { New-ADUser -Name $u.Name -GivenName $u.FirstName -Surname $u.LastName -UserPrincipalName "$($u.Username)@company.com" -Department $u.Department -Enabled $true -AccountPassword (ConvertTo-SecureString $u.TempPassword -AsPlainText -Force) Add-ADGroupMember -Identity $u.Department -Members $u.Username } ``