Print the modified date of the file in Linux

There are many ways to check the modified date of the file.
(1) For simplify, use ls -l

(2) use stat

   Here,

   1)the 'find' command will print the modification date for every file recursively.

   2)sort -n(numerically) -r(for reverse) or you can use "sort -nr"

   3)head -n 1: get the first entry or use "sed 1q".
(3) use -printf to avoid calling stat repeatedly

    Now, there we go!