31 character osuser

[root@stormking ~]# echo -n Pekwachnamaykoskwaskwaypinwanik | wc -c
31

[root@stormking ~]# useradd -g dba Pekwachnamaykoskwaskwaypinwanik

[root@stormking ~]# su - Pekwachnamaykoskwaskwaypinwanik
[Pekwachnamaykoskwaskwaypinwanik@stormking ~]$ export ORAENV_ASK=NO
[Pekwachnamaykoskwaskwaypinwanik@stormking ~]$ export ORACLE_SID=DB11204
[Pekwachnamaykoskwaskwaypinwanik@stormking DB11204 ~]$ . oraenv
ORACLE_BASE environment variable is not being set since this
information is not available for the current user ID Pekwachnamaykoskwaskwaypinwanik.
You can set ORACLE_BASE manually if it is required.
Resetting ORACLE_BASE to its previous value or ORACLE_HOME
The Oracle base has been set to /u01/app/oracle/product/11.2.0/dbhome_2
[Pekwachnamaykoskwaskwaypinwanik@stormking DB11204 ~]$ sqlplus /nolog

SQL*Plus: Release 11.2.0.4.0 Production on Tue Jun 28 20:58:52 2016

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

SQL> conn u/u@//stormking:1521/DB11204
Connected.
SQL> select osuser from v$session where sid=sys_context('userenv','sid' );

OSUSER
--------------------------------------------------------------------------------
Pekwachnamaykoskwaskwaypinwani

SQL> conn / as sysdba
Connected.
SQL> select osuser from v$session where sid=sys_context('userenv','sid' );

OSUSER
--------------------------------------------------------------------------------
Pekwachnamaykoskwaskwaypinwani