PhilipPirrip wrote: > Why does \input@path end with two slashes, as in > /home/user/directory//
IIRC this means that also sub directories are searched, but this should be documented in some TeX or LaTeX docs. > and why is its output > "/home/user/dir ectory/"/ > (note quotation marks, and two separate ending slashes) when the folder > name contains spaces? Wiothout quotes only the part before the space would be used. I believe that the second slash is not included in the quotes since it is only a special marker (see above). As you already found out \input@path does not work in several cases, therefore LyX changed to use TEXINPUTS. If biber does not work with either mechanism then please report this to the biber people. Georg