update_all_link.sh

#!/bin/sh
#
# there are many symbolic link which link to some file in OLDDIR in directory SYBDIR.
# one day, OLDDIR has suddenly been moved to NEWDIR, and all symbolic link 
# in SYBDIR has been dead.
# you can't link from NEWDIR to OLDDIR in some reason.
# this script renewal all symbolic file target to new one.
#

OLDDIR=dir1
NEWDIR=dir2
SYBDIR=dir3

cd ${SYBDIR}
for i in `find * -lname "*${OLDDIR}*"`;do
ln -fs ${NEWDIR}/${i} ${i}
done