unix classes Task 3 (20 points) Write a bash program sort.sh to sort a list by frequency in descending order. Your script should take in a filename as an argument. Here is an example:>hb117@uxb4:~$ cat names.txt Hoang Leo Thuy Henry Hoang Leo Henry Hoang Leo Henry Hoang Leo Leo hb117@uxb4:~$ ./sort.sh names.txt Leo Hoang Henry Thuy Solution To sort the content in ascending order. Sort | uniq names.txt To sort the content in descending order. Sort - r | uniq names.txt.