If you want to find the newest file inside directory, you can use the ls & tail combination.
ls -t | head -1
bash$ ls -t | head -1 id695.txt
Another option is with the next command
ls -lrth | tail -1
bash$ ls -lrth | tail -1 -rw-r----- 1 user ugroup 85 Nov 11 15:38 id695.txt
| is used to send the output of the first command as input to the second one.
tail — outputs the last files
-1 — denotes the number of lines u want to display (in case you don’t set -1, by default you will get the last 10 lines)