Write a Bash script where:

The script should first read a file line by line, where each line is a person's information

formatted as "FirstName LastName, YYYY$-$MM$-$DD$,$ City, Country".

The script should filter the lines to only include people who are from a city that

contains two or more words $($e$.$g$.,$ "San Francisco"$).$ Use a regular expression to check

this.

For each of the filtered lines, the script should extract the person's age in years, based

on the date of birth. You'll need to use a regular expression to extract the date of birth and

then calculate the age.

After all ages are calculated, sort the people by their ages in descending order and print

each person's name along with their age.

Note: You can assume that the current year is $2024$ for age calculations.