PowerShell
📁 Navigation and Files
📌 Action 🧠 Command 📍 Current directory Get-Location or pwd📂 Change directory Set-Location C:\Path or cd C:\Path📋 List files Get-ChildItem or ls🔍 Recursive search Get-ChildItem -Recurse📄 Create a file New-Item -ItemType File file.txt📁 Create a folder New-Item -ItemType Directory folder📋 Copy a file Copy-Item source.txt destination.txt➡️ Move a file Move-Item file.txt C:\Temp\🗑️ Delete a file Remove-Item file.txt
🔧 Services and Processes
📌 Action 🧠 Command 📋 List services Get-Service▶️ Start a service Start-Service -Name "ServiceName"⏹️ Stop a service Stop-Service -Name "ServiceName"🔄 Restart a service Restart-Service -Name "ServiceName"📊 Service status Get-Service -Name "ServiceName"🔍 List processes Get-Process❌ Kill a process Stop-Process -Name "notepad"💻 Processes by CPU Get-Process | Sort-Object CPU -Descending
💾 Variables and Types
📌 Action 🧠 Syntax 📝 Simple variable $name = "John"🔢 Typed variable [int]$age = 30📚 Array $list = @("item1", "item2", "item3")🗂️ Hash table $hash = @{Name="John"; Age=30}🔤 String [string]$text = "Hello"✅ Boolean [bool]$true_val = $true📅 Date $date = Get-Date🌐 Environment variable $env:COMPUTERNAME
🔍 Filtering and Pipeline
📌 Action 🧠 Command 🔎 Filter with Where Get-Service | Where-Object {$_.Status -eq "Running"}📊 Select columns Get-Process | Select-Object Name, CPU📈 Sort results Get-Process | Sort-Object CPU -Descending📋 First element Get-Process | Select-Object -First 5🎯 Search by name Get-Service | Where-Object {$_.Name -like "*win*"}📏 Measure objects Get-Process | Measure-Object🔄 ForEach in pipeline Get-Process | ForEach-Object {$_.Name}
💬 Display and Output
📌 Action 🧠 Command 💬 Display text Write-Host "Hello"📄 Standard output Write-Output "Result"⚠️ Warning Write-Warning "Attention"❌ Error Write-Error "Error"📝 To a file Get-Process | Out-File processes.txt📋 To clipboard Get-Process | Set-Clipboard🎨 Colors Write-Host "Text" -ForegroundColor Red
🛠️ System Management
📌 Action 🧠 Command 💻 System info Get-ComputerInfo🧠 Available memory Get-CimInstance Win32_OperatingSystem💿 Disk space Get-CimInstance Win32_LogicalDisk👥 Local users Get-LocalUser🔐 Local groups Get-LocalGroup🌐 Network configuration Get-NetAdapter📡 IP addresses Get-NetIPAddress🔄 Restart computer Restart-Computer -Force
🔄 Control Structures
Conditions # Basic If/Else if ($age -ge 18 ) { Write-Host " Adult " } else { Write-Host " Minor " }
# Simple Switch switch ($day) { " Monday " { " Start of week " } " Friday " { " Weekend is near " } default { " Regular day " } } Loops # Simple ForEach $services = Get-Service foreach ($service in $services) { Write-Host $service.Name }
# Classic For for ($i = 1 ; $i -le 5 ; $i ++ ) { Write-Host " Counter: $i " } 📜 Functions and Scripts
Basic Function function Get-SystemInfo { param ( [ string ]$ComputerName = $ env: COMPUTERNAME )
Write-Host " Information for: $ComputerName " Get-ComputerInfo | Select-Object TotalPhysicalMemory , CsProcessors }
# Usage Get-SystemInfo - ComputerName " MyPC " Script with Parameters param ( [ Parameter ( Mandatory = $true )] [ string ]$ServiceName ,
[ ValidateSet ( " Start " , " Stop " , " Restart " )] [ string ]$Action = " Start " )
switch ($Action) { " Start " { Start-Service - Name $ServiceName } " Stop " { Stop-Service - Name $ServiceName } " Restart " { Restart-Service - Name $ServiceName } }
Write-Host " Action $Action performed on $ServiceName " 🛠️ Troubleshooting and Help
🆘 Problem 🧠 Solution ❓ Help on a command Get-Help Get-Process -Examples🔍 Search for a command Get-Command *service*📋 View properties Get-Service | Get-Member🚫 Execution error Set-ExecutionPolicy RemoteSigned📜 Command history Get-History🔧 PowerShell version $PSVersionTable
Syspirit 