Well, you don't give us much information. What operation system are you using? Or should it be cross-platform? Do you want a text interface or graphical user interface? And what is stopping you from just doing it?

If you want to create a graphical user interface you might want to take a look at Perl/Tk

Another question: Aren't those things already possible in the desktop environment? I.e. searching for files, displaying, adding dirs and removing them. That's what every shell like bash or csh and every File Manager like Finder, Dolphin or Windows Explorer does

If you are on linux and don't know how to search for files, you might like to read the man page of 'find' and/or install 'locate' (might also be called 'findutils-locate' or something else, just search for locate). locate puts all filenames on your hard disk into a database so you can just enter 'locate thing' and every file and path with the string "thing" in it will be listed

30 years in this business and was never on a forum.
here some more information:
using Tk on UNIX (Solaris)
in a private Dialog window collecting information to fork a program with parameters
one of the entries has a browse button ...
This browse button should be able to show the directory entries and if needed allow to create a new directory which will be shown in the collecting window.
everything is ready so far, this is the only part missing (I hope :-) ) Thanks for any suggestion.

BR, Remi

Ah yes, Tk has such dialogs ready-to-use. A quick search unearthed Tk::FileDialog, there may be more.

$widget->chooseDirectory won't let you create a directory on win32, but Tk::JFileDialog might