Shell Programming and Scripting

I understand the individual pieces of the following (with one exception ..), but how does it all work as one?

Code:

find ${HOME}/reports/ -name surveyresult*.txt -exec ls -1 {} \; | /usr/xpg4/bin/grep -E  \
"${HOME}/reports/surveyresult[0-9]{14,14}.txt" | sort > ${ResultsFileList}

Find all files like surveyresults*.txt and list them ({}=on the same line??), then take those files names that are like surveyresult[0-9] and place them in the result file.

However, my understanding of surveyresult[0-9]{14,14}, the {14,14} means that it is looking for a minimum & maximum of 14 matches of [0-9] - which will never happen, as there can be at most 10 (???)

What would this result file contents look like?

Moderator's Comments:

Please use code tags next time for your code and data.

In the subtree of reports/ in your home directory, find every file of any type named surveyresult*.txt and pile the names on an ls -l line (hope no dirs), feeding the output to a grep filter using extended regex to ensure the * was 14 digits (could say that in find) and for the winners, sort them and write to a file.