date -d "@$(find dir -type f -printf '%C@\n' | sort -n | sed -n "$(($(find dir -type f | wc -l)/2))p")" +%F

Find the median file modification time of files in a directory tree

I needed to get a feel for how "old" different websites were, based on their directories.
Sample Output
2006-05-20

-1
2009-03-24 18:48:49

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What Others Think

why you use sed + wc + find twice when you can use find + awk?: find -type f -printf '%C@\n'|awk '{a[NR]=$0}END{system("date -d @" int(a[int(NR/2)]) " +%F")}' The media is more useful: find -type f -printf '%C@\n'|awk '{s+=$0}END{system("date -d @" int(s/NR) " +%F")}'
point_to_null · 477 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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