Database : 10g
O/S : RHEL 4

I am not able to locate LISTENER parameter file.

I have checked at $ORACLE_HOME/network/admin. But there is not file in this direcotry.

listener.log is maintained in $ORACLE_HOME/network/log.

Listner is up and running. I have alos check STATUS of listner, but that also not show me directory path of listner file.