look file diff as

file_diff.sh

#!/bin/sh
# You should language as english
# LANG=C

# Export new files or directories
diff -rq a b | grep "Only in" | cut -d":" -f2 | tr -d " " > new.txt

# Export diff files
diff -rq a b | grep "Files" | grep "differ" | cut -d " " -f2 > diff.txt

# Create file path.
find /tmp/b -type f

# split file path.
cat /tmp/aa.txt | while read line; do   f=`basename $line`; d=`dirname $line`; echo -e "$d\t$f" >> filepath.txt; done