On localhost, by default tools should not require explicit password but must use current user to authenticate

Need Couchbase tools (i.e. CBQ, cbbackup) to have the capability to access the services via OS auth to avoid passing of admin user and password seen in clear text via ps -ef command line. The requirement will be: if the sudo user is the owner of the installed binary (couchbase) of a cluster, no need to indicate Admin user/pass when running CBQ or backups or any other tool that references a localhost. This is similar to Oracle connect internal (or sqlplus / as sysdba).