Checking Oracle Version

Question

How to check which oracle software version is installed? I know we can check this in v$version but I want to know how to check the version without database. Means if you have oracle binaries sitting on one box without database then how can you tell which version it is? I can run sqlplus it show its 10.2 but I wanna to know whether its EE or SE? For example if I do (tmp sid doesn't exist):
$export ORACLE_SID=tmp
$sqlplus
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Sep 22 10:01:10 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Enter user-name: / as sysdba
Connected to an idle instance.
SQL> quit
Disconnected
Its not showing me whether its EE or SE, but if login thru proper sid then:
sqlplus
SQL*Plus: Release 10.2.0.2.0 - Production on Fri Sep 22 10:02:44 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Enter user-name: / as sysdba
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - 64bit Production
With the Partitioning and Data Mining options
It shows its EE.
Daljit Singh

Answer 1

Again its not showing whether its EE or SE. Here is the saved file:
more test
Inventory contents of (xxxxxxxxx):
Oracle Homes
Ora10g
Oracle Database 10g 10.2.0.1.0
Oracle Database 10g Patch 10.2.0.2.0
Oracle Database 10g 10.2.0.1.0
Oracle Database 10g Patch 10.2.0.2.0
Interim Patch# 5233089
Oracle Net Listener 10.2.0.1.0
Oracle Net Listener Patch 10.2.0.2.0
Oracle Net 10.2.0.1.0
Oracle Net Patch 10.2.0.2.0
Assistant Common Files 10.2.0.1.0
Assistant Common Files Patch 10.2.0.2.0
Enterprise Manager Minimal Integration 10.2.0.1.0
Required Support Files 10.2.0.1.0
Oracle Net Required Support Files 10.2.0.1.0
Oracle Net Required Support Files Patch 10.2.0.2.0
SSL Required Support Files for InstantClient 10.2.0.1.0
SSL Required Support Files for InstantClient Patch 10.2.0.
2.0
Any other way means by checking some file in lib or bin or ....??
Daljit Singh