Weighted average summary of file size + age


Do any system admins have a utility lying around to
compute some sort of weighted average summary of
file size and age?

Our cluster home space needs some cleaning and I suspect
some of the files folks are keeping on there are quite old
and would like to drive the point home with more than
just a du -h /users/* listing.

So something like,

User Usage Hog score

kleb 102GB 195 19.9GB-Kdays
frank 56GB 32 1.8GB-Kdays
hamly 354GB 454 160.7GB-Kdays

where is the average age in days, something like,

sum( file.size * file.age ) / ( total_size * total_age )

and Hog Score is Usage x in GB-kilodays.


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