shellでファイル操作＋while文＋変数操作

採点作業用に作ったやつ

#!/bin/sh
FILE=list.txt
while read LINE
do
    echo $LINE
    id=$(echo $LINE | sed "s/DirRegExp\///g")
    dir=$(echo $LINE | sed "s/\/FileRegExp//g")
    echo mkdir $id
    echo "cp $dir/* $id"
done < $FILE

list.txt

Directory_01/StudentID_01
Directory_01/StudentID_02
Directory_02/StudentID_03
Directory_02/StudentID_04
..

output:

mkdir StudentID_01
cp Directory_01/* StudentID_01
mkdir StudentID_02
cp Directory_01/* StudentID_02
mkdir StudentID_03
cp Directory_02/* StudentID_03
mkdir StudentID_04
cp Directory_02/* StudentID_04
..