title: Convert binary data to hexadecimal in a shell script
body: <p>I want to convert binary data to hexadecimal, just that, no fancy formatting and all. <code>hexdump</code> seems too clever, and it "overformats" for me. I want to take x bytes from the /dev/random and pass them on as hexadecimal.</p>
  
  <p>Preferably I'd like to use only standard Linux tools, so that I don't need to install it on every machine (there are many).</p>