title: GNU parallel: how to format replacement string?
body: <p>I am trying to achieve the following and I want to do it on multiple processes <strong>using GNU parallel.</strong> </p>
  
  <pre><code>for i in $(seq 0 3); do
   var=$(printf "%.5d" $i)
   echo test_$var
  done
  
   Output:
  --------------------
  test_00000
  test_00001
  test_00002
  </code></pre>
  
  <p>I tried this and it's not working:</p>
  
  <pre><code>parallel var=$(print "%.5d" {})\; echo test_$var ::: $(seq 0 3)
  </code></pre>