Masking Password on the JDBC connectivity from Hadoop to Teradata.

Hello Friends,
Can someone share some insights on how I can mask the password when I make a connection from Hadoop to Teradata using the JDBC drivers? I understand that the password can be entered in the Teradata export/import properties file, but if I need to establish connectivity to multiple Teradata systems from the same cluster, i would not be able to do so. The other way is to hardcode the password on the connectivity something like..
-url jdbc:teradata://TD_SYSTEM_NAME/Database=DB_NAME
-username USERNAME
-password  TEST$123
 
In the above how can I mask the password "TEST$123" from being visibile in the scripts or on the logs? Do we have something like a Password file paramter that I can use or do I have other options? Any help would be appreciated.
 
Thank you.