From the following studpi example;

@IDs = qw(Apple Apple Grape Banana Banana)
@Price = qw(5 5 2 3 4 )
@Amount = qw(10 15 3 4 4 )

I want;

@IDs = qw(Apple Grape Banana)
@Price = qw(5 2 3/4)
@Amount = qw(10/15 3 4)
[download]

Ithought about using hashes but for that I need unique key and IDs are not unique. Sorry for vague explanations and thanks for help.