Uniq and sort mates for statistical sorting

When you are counting multiple lines of the same content, you can use Uniq, which mainly uses the following parameters:

       -C,--count prefix lines by the number of
              occurrences

Adds the number of rows that are repeated before the contents of the row.

When sorting, you can use sort, mainly the following two parameters:

       -N,--numeric-sort
              compare according to string numerical value
       -R,--reverse
              reverse the result of Comparisons

The order is sorted and reversed according to the digital quantity.

In addition, the parameters commonly used by Uniq are

       -U,--unique only
              print unique lines

Used to exclude repetition;

       -D,--repeated only
              print duplicate lines, one for each group

Used to look for duplicates, with-C will also output the number of repetitions.