#!/bin/bash

for year in {2007,2008,2009}; do
    for f in `ls ak_${year}*`; do
	base=`echo $f | awk 'BEGIN{FS="."};{print $1}'`
	ext=`echo $f | awk 'BEGIN{FS="."};{print $2}'`
	p1=`echo $base | awk 'BEGIN{FS="_"};{print $1}'`
	p2=`echo $base | awk 'BEGIN{FS="_"};{print $2}'`
	p3=`echo $base | awk 'BEGIN{FS="_"};{print $3}'`
	p4=`echo $base | awk 'BEGIN{FS="_"};{print $4}'`
	fout="${p1}_${p3}_${p2}"
	if [ -n "$p4" ]; then fout="${fout}_${p4}"; fi;
	echo mv $f $fout.$ext
	#mv $f $fout.$ext
    done;
done;