How create function valid birthday format dd-mm-yyyy

Shell Programming and Scripting
1

I write a small shell script create Payroll System my trouble is valid format birthday dd-mm-yyyy when you enter birthday if your value enter not match with format dd-mm-yyyy system will display "Fail Format Please re-enter Birthday with format dd-mm-yyyy" but i don't know how create function valid birthday?? Thanks Unix Expert

2

Hello!

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Check this thread:

3

thanks mod
but i try to search in forum but i do not find my problem
My problem is
when you enter number of birthday and check it match with date format dd/mm/yyyy
if true next step else prompt "Please try again . . ."

4

With the given link above you should be able to give it a shot yourself.

Play around with it and come with specific questions about why particular lines in your code don't work.

Regards