sum for unique value of particular column and print

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sum for unique value of particular column and print



I have a file in the following format:


a|x|ahjkd|1

a|y|abd|2

b|x|tuj|3

b|gf|hui|4



I want the sum of column 4 for every unique value in column 1 and print all the lines along with the sum for corresponding column 1 i.e.



output should be like


a|x|ahjkd|1|3

a|y|abd|2|3

b|x|tuj|3|7

b|gf|hui|4|7





What have you tried so far?
– Ben Jones
Jul 19 at 19:34





Did you consider a particular programming / scripting language to achieve this?
– πάντα ῥεῖ
Jul 19 at 19:36







i want to do it using awk arrays
– user6677057
Jul 20 at 5:12









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