<# .SYNOPSIS Executes a PowerShell cmdlet.
# Get all processes Execute-Cmdlet -cmdlet "Get-Process" powershell 3 cmdlets hackerrank solution
# Get all services Execute-Cmdlet -cmdlet "Get-Service" powershell 3 cmdlets hackerrank solution
# Get all child items in the specified directory Execute-Cmdlet -cmdlet "Get-ChildItem" -argument "C:\Windows" powershell 3 cmdlets hackerrank solution