set environment variables in shell script 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: setting environment variables bash

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

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