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Summation of file size according to user

Posted by hycheah (hycheah), 12 October 2006
I have a text file to process that looks like this:

john2    1k
pete3    2k
nlee5    2k
john2    1k
john2    1k
nlee5    3k
pete3    2k

The first column is the user name and the second column is the file size of file belonging to the user.

I need to sum up all the files size of a particular user and produce the output which looks like this:

john2    total: 3k
pete3    total: 4k
nlee5    total: 5k

The user names are scattered all over the list and does not come in sequential order. And there are more than 3 user names depending on the file.

Posted by admin (Graham Ellis), 12 October 2006
Use a hash, with the keys being the user names and the values the accumulated storage to date.

Posted by hycheah (hycheah), 12 October 2006
Ok done. I have managed to group all the values under 1 key.

$array{"john2"} = ("1", "1", "1");
$array{"pete3"} = ("2", "2");
$array{"nlee5"} = ("2", "3");

But I am still working on how to sum up all the values. Any ideas?   Thanks.  

Posted by admin (Graham Ellis), 12 October 2006
Yep, don't group them that way ... write something like

$kilocount{$person} += $newkbs;

as you go through the data.

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