Submit the full path of the "xxd" binary.

@TazWake said:
Ok - there is always a risk this will get nuked as a spoiler because people seem overly sensitive about Academy discussions.

As an example, if you are looking for a file called taz on a Linux machine, you can try:
find / -name "taz" 2>/dev/null
find will return all instances of files with the filename taz and will show the full path to the file it retuns along the lines of:
/home/taz/taz

The answer to the full path would be /home/taz/taz.

If the file is a binary/executable you can also get good results with: which taz or locate taz

You say you are struggling to understand it, can you be more specific what it is you are struggling with?

locate its the best way to search the anwser