@PatrickGundlach I did the following
mkdir -p /usr/local/texlive/texmf-local/tex/latex/try
touch /usr/local/texlive/texmf-local/tex/latex/try/myfile.abc
mktexlsr
kpsewhich myfile.abc
The answer was
/usr/local/texlive/2012/../texmf-local/tex/latex/try/myfile.abc