#!/bin/bash
dir='public_html/report01'
stus='ahnhs gahirie mami mikity satoki smakiko tishida tuguyuki tyamada yukai yuuya'
wd='reports'

if [ ! -d ${wd} ]; then
  mkdir ${wd}
fi

for id in $stus; do
  if [ -d /home/${id}/${dir} ]; then
    cp -r /home/${id}/${dir} ${wd}/${id}
  else
    echo $id don\'t exist.
  fi
done