what is the correct command for finding the largest file and displaying it without any error information?

I can find it, but how do I display it in the same command?

You want to display the file on the screen? Like 'cat/less/more file'? It would help if you post the command you're using. Anyway, If you have a command outputting the biggest file, just your-command | xargs cat

it doesn't matter which command, I just want to find and display the contents of the biggest file without any other information.

cat, ls, find, more, or less aren't exactly doing that with | xarg cat

 
 more `find . -type f -exec du -a {} \;|grep -v '\/.*\/'|sort -n|tail -1|awk '{print $2}'`

#find / -xdev -size +100000 -exec ls -l {} \; | sort +4n | more

Another one without using sort...

find -name "*" -type f | xargs ls -ltrS | awk 'END{ print $NF }' | xargs cat

I figured finding and displaying the largest file on the system would be a small and simple command that actually finds and displays only the largest file on the system.