[root@localhost ~]# su - oracle

[oracle@localhost ~]$ sqlplus / as sysdba;

SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:22:59 2018

Copyright (c) 1982, 2011, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SYS@orcl> select instance_name ,status from v$instance;

INSTANCE_NAME    STATUS
---------------- ------------
 

orcl             OPEN

SYS@orcl> quit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@localhost ~]$ exit
logout

[root@localhost ~]# who am i
root     pts/10       2018-07-13 22:22 (192.168.242.1)
[root@localhost ~]#  useradd oracleexternal
[root@localhost ~]# passwd oracleexternal
Changing password for user oracleexternal.
New UNIX password:
Retype new UNIX password:
passwd: all authentication tokens updated successfully.
[root@localhost ~]# su - oracleexternal
[oracleexternal@localhost ~]$ cat .bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
[oracleexternal@localhost ~]$ vi .bash_profile

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_TERM=xterm
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib

export CLASSPATH=$ORACLE_HOME/JRE:ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
~
~
~
~
~
~
".bash_profile
 
" 20L, 479C written
[oracleexternal@localhost ~]$ cat .bash_profile
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
export ORACLE_SID=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_TERM=xterm
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib

export CLASSPATH=$ORACLE_HOME/JRE:ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
[oracleexternal@localhost ~]$  source .bash_profile
[oracleexternal@localhost ~]$ su - oracle
Password:
[oracle@localhost ~]$ rlwrap sqlplus / as sysdba;

SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:25:45 2018

Copyright (c) 1982, 2011, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SYS@orcl> show parameter os

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
 

db_lost_write_protect                string      NONE
diagnostic_dest                      string      /u01/app/oracle
optimizer_index_cost_adj             integer     100
os_authent_prefix                    string      ops$
os_roles                             boolean     FALSE
remote_os_authent                    boolean     FALSE
remote_os_roles                      boolean     FALSE
timed_os_statistics                  integer     0
SYS@orcl> create user ops$oracleexternal identified externally;

User created.

SYS@orcl> grant create session to ops$oracleexternal;

Grant succeeded.

SYS@orcl> quit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@localhost ~]$ exit
logout

[oracleexternal@localhost ~]$ who am
[oracleexternal@localhost ~]$ whoami
oracleexternal
[oracleexternal@localhost ~]$ sqlplus /

SQL*Plus: Release 11.2.0.3.0 Production on Fri Jul 13 22:27:16 2018

Copyright (c) 1982, 2011, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options



OPS$ORACLEEXTERNAL@orcl>
OPS$ORACLEEXTERNAL@orcl>  set time on;
22:29:13 OPS$ORACLEEXTERNAL@orcl>

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