how to save environment variables in linux permanently code example
Example 1: set permanant environemt variable
$EDITOR ~/.profile
#add lines at the bottom of the file:
export LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib
export ORACLE_HOME=/usr/lib/oracle/11.2/client64
Example 2: linux set environment variable
# Linux - Bash
# syntax
# export *<variable-name>=*<variable-value>;
# example
export ORACLE_SID='sales_database';