Question:
I’ve got following code snippet:
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> 1..10|%{$count=0}{$count+=$_}{$count} 55 > 1..10|Sum |
The last line obviously shows an error since there is no “Sum” function. Is there a convenient way to sum items in PowerShell?
Answer:
You can use the Measure-Object cmdlet:
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PS > 1..10 | Measure-Object -Sum Count : 10 Average : Sum : 55 Maximum : Minimum : Property : PS > (1..10 | Measure-Object -Sum).Sum 55 PS > |
Note that it also works with properties of objects:
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PS > ('abc', 'def', 'ghi') | Measure-Object -Sum -Property Length Count : 3 Average : Sum : 9 Maximum : Minimum : Property : Length PS > |
In the above example, we sum the lengths of the strings in the array by setting the -Property parameter to Length.