title: "free command not found" while running bash script using git bash
body: <p>I want to display server load, disk space, usage and memory usage in bash script. </p>
  
  <p>But when I try</p>
  
  <pre><code>echo "Memory usage:"
  memory_usage=$ free -m | awk 'NR==2{printf "Memory Usage: %s/%sMB (%.2f%%)\n", $3,$2,$3*100/$2 }'
  echo $memory_usage
  </code></pre>
  
  <p>this and run the script using <code>./test.sh</code> it gives me the error:</p>
  
  <blockquote>
    <p>free command not found</p>
  </blockquote>