SYS@cdb1>select * from v$version;

BANNER
--------------------------------------------------------------------------------
    CON_ID
----------
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
         0

PL/SQL Release 12.1.0.2.0 - Production
         0

CORE    12.1.0.2.0      Production
         0


BANNER
--------------------------------------------------------------------------------
    CON_ID
----------
TNS for Linux: Version 12.1.0.2.0 - Production
         0

NLSRTL Version 12.1.0.2.0 - Production
         0


SYS@cdb1>ed
SP2-0111: Cannot close save file "afiedt.buf"

Interim patches (2) :

Patch  20243268     : applied on Mon Mar 21 21:06:20 SGT 2016
Unique Patch ID:  19729177
   Created on 11 Jan 2016, 11:28:47 hrs PST8PDT
   Bugs fixed:
     20243268
   This patch overlays patches:
     21949015
   This patch needs patches:
     21949015
   as prerequisites

opatch version
OPatch Version: 12.1.0.1.10

OPatch succeeded.

Patch Id: 21694919
Patch Description: DATABASE BUNDLE PATCH: 12.1.0.2.13 (21694919)
Patch Apply Time: 2016-03-20 17:29:10 GMT+08:00
Bugs Fixed: 13683743,16087033,16777441,18727933,18758877,18778801,18803726,
18810904,18895170,18952766,18999568,19130152,19131386,19131607,19146474,
19168167,19243521,19248279,19313563,19317646,19327391,19364502,19440520,
19441649,19448499,19461428,19468612,19523462,19547774,19566592,19571055,
19571082,19583624,19590877,19632912,19647503,19680796,19701015,19705781,
19769625,19784751,19799847,19811709,19817386,19824871,19859472,19869255,
19880190,19883092,19886165,19889230,19914604,19933147,19952975,19982584,
19988852,19990037,20009569,20011646,20011897,20017509,20052269,20061399,
20124446,20130196,20227126,20233181,20261923,20340510,20441797,20471920,
20494044,20565112,20565133,20577490,20668053,20703629,20707932,20717091,
20724902,20732272,20739811,20800890,20801783,20815650,20825533,20828104,
20831538,20832474,20847534,20857041,20868862,20890311,20893843,20925795,
20936905,20988771,21032832,21087813,21091431,21136799,21151241,21153266,
21187090,21188584,21218121,21241052,21273804,21283023,21285458,21293453,
21300341,21306811,21345404,21372880,21372897,21387128,21427131,21442094,
21459225,21517261,21554789,21568648,21620471,21813529,21903230,22062026

Patch Id: 21949015
Patch Description: DATABASE BUNDLE PATCH: 12.1.0.2.160119 (21949015)
Patch Apply Time: 2016-03-20 17:30:50 GMT+08:00
Bugs Fixed: 14283239,16817656,17249267,17532734,17551063,17655240,17734040,
17994602,18603592,18705806,18749211,18797519,18893947,19141838,19151370,
19163723,19215966,19359219,19450314,19490948,19544707,19576559,19578230,
19676012,19680898,19931709,20001466,20024405,20195148,20228093,20233159,
20250147,20322560,20368850,20401975,20466322,20618595,20624914,20653340,
20672955,20673810,20708701,20723042,20777159,20794951,20801390,20842388,
                                                                        

SQL> HOST pwd
SQL> HOST ls -l ..

SYS@cdb1>host pwd
/home/oracle

SYS@cdb1>host ls -l ..
total 8
drwx------. 25 olaf   olaf     4096 Mar 30 19:10 olaf
drwx------. 30 oracle oinstall 4096 Mar 31 18:40 oracle

ps -ef | grep afiedt.buf
oracle     6977   6936  0 18:40 pts/4    00:00:00 grep afiedt.buf
[oracle@ol65-em12cr4 ~]$ ps -ef | grep sqlplus
oracle     6919   6868  0 18:39 pts/1    00:00:00 sqlplus   as sysdba
oracle     6979   6936  0 18:40 pts/4    00:00:00 grep sqlplus
[oracle@ol65-em12cr4 ~]$ ps -ef | grep pmon
oracle     5428      1  0 17:25 ?        00:00:00 ora_pmon_cdb1
oracle     6981   6936  0 18:40 pts/4    00:00:00 grep pmon