Сортировка

#! /bin/bash

for i in `ls -d a*`
do
dirlet=`echo $i|cut -c-1`
if [ ! -d ../Pics2/${dirlet,,} ]
then
echo Creating ${dirlet,,}
mkdir ../Pics2/${dirlet,,}
fi
echo Moving $i to ../Pics2/${dirlet,,}/
mv $i ../Pics2/${dirlet,,}/
done;