shell script arguments in the ebs 11i

 as am writing a shell script to rm one particular from one location and try to register the concurrent program is i execute the shell script in the back end it is executing and working fine but if i register with the ebs concurrent program as the host file program is its not working so please help us in the what went wrong

my script is 

#!/usr/bin/sh

[ -f /erp/oracle/cloneappl/XX/bin/xx_ao.csv ]&& echo "File exists" || echo

 "File does not exists"

cd  /erp/oracle/cloneappl/XX/bin

rm -rf xx_ao.csv

[ -f /erp/oracle/cloneappl/XX/bin/oic_ao.csv ]&& echo "File exists" || echo