SET ORACLE VARIABLES IN LINUX CENT OS AND REDHAT

Go to Terminal
vi  /etc/bashrc 
--Add these pathes--

/etc/bashrcexport TNS_ADMIN=$HOME
export EDITOR=vim
export ORACLE_HOME=/usr/lib/oracle/11.2/client64

-- refresh the cache

source /etc/bashrc



-- check sqlplus is working
sqlplus64 /nolog