environment variables bash code example

Example 1: env variable bash

#print enviornment variable bash
echo $TEST_VAR

Example 2: bash set environment variable

# Linux - Bash

# syntax 
# export *=*;

# example 
export ORACLE_SID='sales_database';

Example 3: setting environment variables bash

export VARNAME="my value"      # shorter, less portable version

Example 4: env variable bash

#Set envionrment variable bash
TEST_VAR='Hello World!'

Example 5: bash get environment variable

Just type next command to list all environments varialbes in terminal:
printenv