Hello

Using Bash Linux

I have a catalogue of events and the year that happened(for instance from 1000 -1800, and the increasing step is not always by year)

I have to wright a script where It will ask the user to input a variable time period (for instance var=30years) and then create in a directory (for instance EVENTS) and subdirectories for each time period (var) . The first year should always be the year in the top of the catalogue(in this case 1000).

Any help?

Thank you in advance