1. Problem
You want to measure the numeric (minimum, maximum, sum, average) or textual (characters, words, lines) features of a list of objects.
2. Solution
Use the Measure-Object cmdlet to measure these statistical properties of a list.
To measure the numeric features of a stream of objects, pipe those objects to the Measure-Object cmdlet:
        PS >1..10 | Measure-Object–Average -Sum
        [...]

1. Problem
You want to know how long a command takes to execute.
2. Solution
To measure the duration of a command, use the Measure-Command cmdlet:
        PS >Measure-Command { Start-Sleep -Milliseconds 337 }

        Days              : 0
        Hours             : 0
        Minutes           : 0
        Seconds           : 0
        Milliseconds      : 339
        Ticks             : 3392297
        TotalDays         : 3.92626967592593E-06
        TotalHours        : 9.42304722222222E-05
        TotalMinutes      [...]