/usr/share/texlive/texmf-dist/tex/ is in texlive-lang-portuguese 2017.20180305-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/texlive/texmf-dist/tex/generic/
/usr/share/texlive/texmf-dist/tex/generic/babel-portuges/
/usr/share/texlive/texmf-dist/tex/generic/babel-portuges/portuges.ldf
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/loadhyph/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/loadhyph/loadhyph-pt.tex
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/ptex/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/ptex/hyph-pt.ec.tex
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/tex/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/tex/hyph-pt.tex
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/txt/
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/txt/hyph-pt.chr.txt
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/txt/hyph-pt.hyp.txt
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/txt/hyph-pt.lic.txt
/usr/share/texlive/texmf-dist/tex/generic/hyph-utf8/patterns/txt/hyph-pt.pat.txt
/usr/share/texlive/texmf-dist/tex/latex/
/usr/share/texlive/texmf-dist/tex/latex/feupphdteses/
/usr/share/texlive/texmf-dist/tex/latex/feupphdteses/feupphdteses.sty
/usr/share/texlive/texmf-dist/tex/latex/ordinalpt/
/usr/share/texlive/texmf-dist/tex/latex/ordinalpt/ordinalpt.sty