Combine results of column one Then sum column 2 to list total for each entry in column one

Question

I am bit of Bash newbie, so please bear with me here.

I have a text file dumped by another software (that I have no control over) listing each user with number of ti

Answer 1

GNU datamash:

datamash -W -s -g1 sum 2 < input.txt

Output:

Bob 219
Jim 245
John    208
Mark    190
Richard 142
Sean    201