Variables
Assign and read
Names start with $.
$name = "Ada"
$year = 2026
Write-Output "$name is learning PowerShell in $year"Store command output
Capture objects for later filtering or export.
$procs = Get-Process
$procs | Sort-Object WorkingSet64 -Descending | Select-Object -First 3Arrays and hashtables
Common beginner collections.
$colors = @("red", "green", "blue")
$person = @{ Name = "Sam"; Role = "learner" }
$person.NameEnvironment variables
Read and set process environment values carefully.
$env:USERNAME
$env:PATH
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