This script wont sort correctly by age

Question

My script asks for a name, phone number, and date of birth and then amends these details to a comma separated value file called “birthday.csv”.

It then Sorts “birt

Answer 1

Firstly remove the brackets around "$(currentDay)" and "$(currentDay)"

Answer 2

One bug you have, at least:

if [[ "$currentMonth" -lt "$birthMonth" ]] || [[ "$currentMonth" -eq "$birthMonth" && "$(currentDay)" -lt "$($birthDay)" ]]

"$(currentDay)" should be just "$currentDay" and "$($birthDay)" should be just "$birthDay".

You also have a typo here:

currentMonth=${currenDate:0:2}

That should be currentDate. Put set -u at the top of your script to catch such mistakes.

Also, like Mat said, I don't see any sorting code :)