: Lists all available cmdlets, aliases, and functions in the session.

To solve this, you need to master two built-in PowerShell help commands:

To read input from the console in PowerShell, the standard cmdlet is Read-Host .

He used Where-Object with the -match operator:

). The pipeline allows the output of one cmdlet to be used as the input for another, enabling developers to perform complex operations in a single line of code. For instance, a solution involving finding specific files and calculating their hashes can be achieved by piping Get-ChildItem Get-FileHash

By default, system cmdlets return dozens of hidden properties. HackerRank validation scripts will fail your submission if extra columns exist. The -Property parameter strictly limits the stream to the Name , ID , and CPU metrics. 4. Ordering: Sort-Object

: Forgetting that PowerShell uses character-based operators. Always use -gt (greater than), -lt (less than), -eq (equal to), or -ne (not equal).

Department AverageSalary ---------- ------------- Finance 100000 IT 85000

| Select-Object Department, @Name="AverageSalary"; Expression=[int]($_.Group

The goal of this challenge is typically to process a list of PowerShell commands or a log file and output a specific count or filtered list of cmdlets that match a given criteria.

$lines = Get-Content .\log.txt

Any or string matches mentioned in your problem description. The expected output format required by the test cases.

# Get all child items in the current directory Execute-Cmdlet -cmdlet "Get-ChildItem"

Here is a side-by-side example. Imagine you have an array of one million integers and you need to calculate the square root of each: