title: Shell script to set environment variables
body: <p>I wish to write a shell script to export variables.</p>
  
  <p>Below I have listed the script .</p>
  
  <pre><code>echo "Perform Operation in su mode"
  export ARCH=arm
  echo "Export ARCH=arm Executed"
  export PATH='/home/linux/Practise/linux-devkit/bin/:$PATH';
  echo "Export path done"
  export CROSS_COMPILE='/home/linux/Practise/linux-devkit/bin/arm-arago-linux-gnueabi-';
  echo "Export CROSS_COMPILE done"
  </code></pre>
  
  <p>But this doesn't seem to work properly. I have to individually execute the commands at the shell prompt instead.</p>