Powershell 3 Cmdlets Hackerrank Solution //top\\ May 2026

HackerRank PowerShell 3 Cmdlets

The challenge typically refers to a core exercise in the HackerRank PowerShell (Basic) competency area. It is designed to test your familiarity with the discovery and help system of PowerShell. Challenge Core: The "Big 3" Cmdlets

• ✅ Get-Content, Where-Object, ForEach-Object, Measure-Object
• ✅ Select-String (introduced earlier, but fully supported in v3)
• ❌ No switch -File (v3 has it? Actually, switch -File existed in v2, but safer to avoid)
• ❌ No .NET direct calls like [System.IO.File]::ReadAllLines()

$inputData = @($input) # converts enumerator to array powershell 3 cmdlets hackerrank solution

Step 1: Find the Cmdlet

We guess the verb is "Restart" and the noun is "Service". $inputData = @($input) # converts enumerator to array

Import-Csv $inputFile | Where-Object [int]$ .YearsOfExperience -ge $requiredYears | Sort-Object [int]$ .Salary -Descending | Select-Object -First $topN | Group-Object Department | Select-Object @Name="Department"; Expression=$ .Name, @Name="AverageSalary"; Expression= Measure-Object Salary -Average).Average, 0) | Sort-Object Department Expression= Measure-Object Salary -Average).Average

Solving HackerRank challenges with PowerShell 3 primarily requires reliable stdin handling, effective use of pipeline cmdlets (ForEach-Object, Where-Object, Group-Object, Sort-Object, Measure-Object), and careful parsing of input. Following the patterns above and using explicit casting and trimming will produce robust, judge-friendly scripts.

The Solution Approach

Many HackerRank tasks involve basic file manipulation or system interrogation using standard cmdlets:

Elegant solution: