#!/bin/bash
# Organizes files based on their Modify date.
# folder structure is YYYY/MMDD/filename

FILE_ROOT=/path/to/files
FILES=$FILE_ROOT/*

for f in $FILES
  do
    # Skip if this is a directory or an executable (Assumes the script is in the same folder)
    if ! test -d "$f" && ! test -x "$f"; then
        month=`stat -x $f | grep Modify | awk '{ print $3 }'`
        day=`stat -x $f | grep Modify | awk '{ print $4 }'`
        year=`stat -x $f | grep Modify | awk '{ print $6 }'`

        #Convert date string to number string ('Jul 13' to '0713')
        dateFolder=`date -j -f "%b %d" "$month $day" "+%m%d"`
        newFolder=$PIC_ROOT/$year/$dateFolder

        # Make the directory if it doesn't already exist
        mkdir -p $newFolder

        mv -v $f $FILE_ROOT/$year/$dateFolder/
    fi
  done