I need to add items to a list of items. I am not sure if these are the correct terms.
Example:
Suppose I am inside a directory with 2 files, "a" and "b". If I pipe ls to less my list will have two items, "a" and "b": ls | less
I want to pipe ls to less, but before reach the less command I want an item added to the list. e.g:
ls -->unknow shell feature<-- less
And the content listed by less would be "a", "b" and "c" (file "c" doesn't exitexist)
Is it possible?