To disable prompting form password without passing password in input param:
1. Put password info in soap.client.props file
sudo mcedit /opt/IBM/WebSphere/AppServer/profiles/ctgDmgr01/properties/soap.client.props
2. Encode password in that file
sudo /opt/IBM/WebSphere/AppServer/profiles/ctgDmgr01/bin/PropFilePasswordEncoder.sh /opt/IBM/WebSphere/AppServer/profiles/ctgDmgr01/properties/soap.client.props com.ibm.SOAP.loginPassword