⚡ PowerShell Cheat Sheet — Basics

Working with Objects

Get-Process | Get-Member          # View the list of members of objects
Get-Service | Where-Object {$_.Status -eq "Running"}   # Filter objects by property
Get-Process | Sort-Object CPU -Descending              # Sort objects

Files and Directories

Get-ChildItem               # List files and directories
Set-Location C:            # Change current directory
Copy-Item file.txt D:      # Copy a file
Remove-Item file.txt        # Delete a file
New-Item newfile.txt        # Create a new file

Variables and Data Types

$var = "Hello"              # Create a variable
[int]$num = 5               # Integer
[string]$text = "PowerShell" # String
$array = 1,2,3              # Array
$hash = @{key="value"}      # Hash table

Pipelines and Filters

Get-Process | Where-Object {$_.CPU -gt 100}   # Filter processes by CPU usage
Get-Service | Select-Object Name, Status      # Select specific properties

Loops and Conditionals

if ($x -gt 10) { "Greater than 10" } else { "Less or equal" }
for ($i=1; $i -le 5; $i++) { Write-Output $i }
foreach ($item in $array) { Write-Output $item }
while ($count -lt 5) { $count++ }

Functions and Scripts

function Get-Square($num) {
    return $num * $num
}
Get-Square 5

Modules and Imports

Get-Module -ListAvailable     # List available modules
Import-Module ModuleName      # Import a module