Cumulative total of file column in another column

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I have a file with 2 columns separated by space delimiter:

Location 5
AdministrativeRegion 2
Person 3
Athlete 4
FloweringPlant 8
Film 1
Actor 2

I want to have a cumulative total of numbers of second column in a third column like:

Location 5 5
AdministrativeRegion 2 7
Person 3 10
Athlete 4 14
FloweringPlant 8 22
Film 1 23
Actor 2 25

I know this can be achieved with awk

With something similar to: awk '{total += $0; $0 = total}1'

But I want the result in a new column.

Hope you can help me. Thanks in advance.

windows-subsystem-for-linux awk
1 Answers

I would use GNU AWK for this task following way, let file.txt content be

Location 5
AdministrativeRegion 2
Person 3
Athlete 4
FloweringPlant 8
Film 1
Actor 2

then

{total+=$2;print $0,total}

output

Location 5 5
AdministrativeRegion 2 7
Person 3 10
Athlete 4 14
FloweringPlant 8 22
Film 1 23
Actor 2 25

Explanation: In each line increase (+=) total by value from 2nd column ($2) then print whole line as is ($0) followed by current total.

(tested in gawk 4.2.1)

user_107859750
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