Server Utilities :: Run Exp Utility In Background Mode

I have executed the exp utility to take schema backup as below.

DB_NAME=name
DAY=`date +%a_%d-%m-%Y`
gzip < exp_test_pipe > exp_test_${DAY}.dmp.gz &
exp username@test.cis.cat.com file=exp_test_pipe log=exp_test_dumps.log parfile=export_options.par

more export_options.par
compress=n
statistics=none
CONSISTENT=n
indexes=Y
owner=test
direct=Y

my password is starts with $

example: $12300$ahhh and hence its not allowing me to execute when given like below..

exp username/$12300$ahhh@test.cis.cat.com file=exp_test_pipe log=exp_test_dumps.log parfile=export_options.par