Hi,
I would need to find for files modified more than one day only in the current directory specified and NOT its subdirectories included.

How do I do this?

you answered your own question.

use the find command.
search the forum for various example like what you are asking.

This is a complex command. And we have some threads with the wrong answer. So I'll do this again....

cd <directory>
find . \( ! -name . -prune \) -type f -mtime +1 -print

can you explain the \( ! -name . -prune \) ? Don't really understand that portion. Prune itself means not finding in its directory, but then ! -name . also means not to find in its own directory, right?

::

It means if the name is not ".", do not look inside it. This is to stop "find" from descending into subdirectories.

I think we can force find not to descend more than n levels. Isnt it ?

find . -name "*.c" -maxdepth 1

this will find all the ".c" files in the current directory only. It wont go beyond.

-maxdepth is non-standard...only gnu find has it as far as I know. Yes it will work if you have it.