linux add environment variable 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: add environment variable linux
vi ~/.bash_profile
Example 3: add environment variable linux
export JAVA_HOME=/opt/openjdk11