linux env variable code example

Example 1: print environment variables linux

ENV_VAR="hello world"
printenv ENV_VAR

Example 2: env variable bash

#print enviornment variable bash
echo $TEST_VAR

Example 3: linux set environment variable

# Linux - Bash 

# syntax 
# export *=*;

# example 
export ORACLE_SID='sales_database';

Example 4: set environment variable linux

export JAVA_HOME=/opt/openjdk11