-bash-3.00$ sqlplus sys as sysdba

SQL*Plus: Release 10.2.0.5.0 - Production on Tue Jan 10 23:19:18 2012

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Enter password:

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from v$instance;

INSTANCE_NUMBER INSTANCE_NAME
--------------- ----------------
HOST_NAME
----------------------------------------------------------------
VERSION           STARTUP_T STATUS       PAR    THREAD# ARCHIVE LOG_SWITCH_WAIT
----------------- --------- ------------ --- ---------- ------- ---------------
LOGINS     SHU DATABASE_STATUS   INSTANCE_ROLE      ACTIVE_ST BLO
---------- --- ----------------- ------------------ --------- ---
              1 xxxxxxxx
xxxxxxxx
10.2.0.5.0        24-DEC-11 OPEN         NO           1 STOPPED
ALLOWED    NO  ACTIVE            PRIMARY_INSTANCE   NORMAL    NO


SQL>