linux下diff多个目录的脚本

#!/bin/bash
lists=`cat << EOF
include/xxxx
include/yyyy
app/xxxx
app/yyyy
EOF
`
dir1="/tmp/online/trunk"
dir2="/home/rd/trunk"
for d in $lists
do
    if [ ${d:0:1} = "#" ]
    then
        continue
    fi
    echo diff $d:
    diff -c -a -b -r -q $dir1/$d $dir2/$d
done