Oracle Database Discussions

hello,

i am new to oracle, and want to install oracle database 11gr2 on oracle linux 7.

Now i am trying to set the oracle environment variables which i found on youtube, which looks like these:

==============================================================

[oracle@linux ~] $ vi /home/oracle/.bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

          .~/.bashrc

fi

# User specific environment and startup programs

PATH=$PATH:$HOME/.local/bin:$HOME/bin

export PATH

TMP=/tmp; export TMP

TMPDIR=$TMP; export TMPDIR

ORACLE_UNQNAME=orcl; export ORACLE_UNQNAME

ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE

ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1; export ORACLE_HOME

ORACLE_SID=orcl; export ORACLE_SID

PATH=/usr/sbin:$PATH; export PATH

PATH=$ORACLE_HOME/bin:$PATH; export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH

CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH

===================================================================

then i restart the OS,

when i invoke $ORACLE_HOME or echo $ORACLE_SID, it doesn't show anything, which supposed to show 'orcl' when invoking ORACLE_SID, and 'bash: /u01/app/oracle/product/11.2.0/db_1: is a directory' when invoking the ORACLE_HOME.

Anyone can help? Thanks in advance!

Best Regards,

Jerry Antonius