#!/bin/sh

#this script prints three tables which show you how many files were
#most recently modified for each year, year-mo, and on by day:

#stu@sente ~ $ bash count-by-date.sh public_html/tmp
#year:   2010    6
#year:   2009    2
#year:   2008    1
#month:  2010/03 3
#month:  2010/01 3
#month:  2009/10 1
#month:  2009/01 1
#month:  2008/04 1
#day:    2010/03/01      3
#day:    2010/01/28      3
#day:    2009/10/16      1
#day:    2009/01/05      1
#day:    2008/04/14      1


find "$@" -maxdepth 1 -printf "%TY|%TY/%Tm|%TY/%Tm/%Td|%f\n" | awk '
   BEGIN{
      FS="|";
      OFS="\t"
   }
	{
		year[$1]++
		month[$2]++
		day[$3]++
	}
	END{
      #how can I avoid using three nearly identical loops?

		for(i in year)  {print "year:",  i, year[i] }
		for(i in month) {print "month:", i, month[i] }
		for(i in day)   {print "day:", i, day[i] }
	}' |sort -r