Yes, I know, sometimes I'm an horrible person, but even the Unix programmers just want to have fun. :-)

" Trollfs permits to create and "overmount" a fake in-memory file system (using FUSE) that reproduce almost exactly the structure of the sub-tree present in the mount point, but, for each read request returns fake data instead of the real content, The payload is freely configurable creating o modifying the files present in the payloads' directory. A file created in that directory, with an extension related to one or more real files present in the original directory, will be used as fake data".

• C++11 compiler;
• libfuse
• libmagic

Tested on:

• Ubuntu 16.10
• Debian 7.11 (Wheezy)

• launch the configure script: ./configure
• Compile the program: make
• Install the program and the man page (optional): sudo make install

See the man page included in the release.