Automatically export ORACLE environment variables in Linux

 

cat /etc/oratab | grep -e "^[\a-Az-Z0-9\]\{0,8\}\:*/[[:graph:]]*" | awk -F: '{print $1,$2}' | read a b

$ echo $a

target

 $ echo $b

/usr/local/opt/oracle/app/oracle/product/11.2.0.4

export ORACLE_HOME=$b

export ORACLE_SID=$a

export PATH=$ORACLE_HOME/bin:$PATH