title: how to "decdump" a string in bash?
body: <p>I need to convert a string into a sequence of decimal ascii code using bash command.<br>
  <br><strong>example</strong>:
  for the string '<strong>abc</strong>' the desired output would be <strong>979899</strong> <br>where a=97, b=98 and c=99 in ascii decimal code.
  <br><br>
  I was able to achieve this with ascii hex code using xxd.
  <br></p>
  
  <pre><code>printf '%s' 'abc' | xxd -p
  </code></pre>
  
  <p>which gives me the result: <strong>616263</strong>
  <br>
  where a=61, b=62 and c=63 in ascii hexadecimal code.
  <br></p>
  
  <p>Is there an equivalent to xxd that gives the result in ascii decimal code instead of ascii hex code?</p>