texdoc debug-version: /usr/share/texlive/texmf-dist/scripts/texdoc/texdoclib.tlu version 3.0
texdoc debug-config: Setting 'debug_list=all' from command line option "-D".
texdoc debug-config: Setting 'viewer_pdf=(xdg-open %s) &' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 37.
texdoc debug-config: Setting 'viewer_ps=(xdg-open %s) &' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 38.
texdoc debug-config: Setting 'viewer_dvi=(xdg-open %s) &' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 39.
texdoc debug-config: Setting 'viewer_html=(xdg-open %s) &' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 40.
texdoc debug-config: Setting 'viewer_txt=(xdg-open %s) &' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 41.
texdoc debug-config: Setting 'zipext_list=gz, bz2, xz' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 70.
texdoc debug-config: Setting 'unzip_gz=gzip -d -c' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 71.
texdoc debug-config: Setting 'unzip_bz2=bzip2 -d -c' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 72.
texdoc debug-config: Setting 'unzip_xz=xz --decompress --stdout' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 73.
texdoc debug-config: Setting 'suffix_list=doc, -doc, _doc, .doc, /doc, manual, /manual, -manual, userguide, /user_guide, -guide, -user, -man, notes, -info, ref' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 104.
texdoc debug-config: Setting 'lastfile_switch=true' in file "/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf" on line 518.
texdoc debug-config: Setting 'lang=pt' from operating system locale.
texdoc debug-config: Setting 'interact_switch=true' from built-in defaults.
texdoc debug-config: Setting 'badext_list=txt, ' from built-in defaults.
texdoc debug-config: Setting 'machine_switch=false' from built-in defaults.
texdoc debug-config: Setting 'fuzzy_level=5' from built-in defaults.
texdoc debug-config: Setting 'mode=view' from built-in defaults.
texdoc debug-config: Setting 'basename_list=readme, 00readme' from built-in defaults.
texdoc debug-config: Setting 'verbosity_level=2' from built-in defaults.
texdoc debug-config: Setting 'badbasename_list=readme, 00readme' from built-in defaults.
texdoc debug-config: Setting 'max_lines=20' from built-in defaults.
texdoc debug-config: Setting 'ext_list=pdf, htm, html, txt, ps, dvi, ' from built-in defaults.
texdoc debug-config: Setting 'rm_dir=rmdir' from built-in defaults.
texdoc debug-config: Setting 'rm_file=rm -f' from built-in defaults.
texdoc debug-files: Configuration files are:
texdoc debug-files: active	/usr/share/texlive/texmf-dist/texdoc/texdoc.cnf
texdoc debug-texdocs: texdocs[8] = /home/tiago/.texlive2018/texmf-config/doc (index_mandatory=false, recursion_allowed=true)
texdoc debug-texdocs: texdocs[7] = /home/tiago/.texlive2018/texmf-var/doc (index_mandatory=false, recursion_allowed=true)
texdoc debug-texdocs: texdocs[6] = /home/tiago/texmf/doc (index_mandatory=false, recursion_allowed=true)
texdoc debug-texdocs: texdocs[5] = /usr/local/share/texmf/doc (index_mandatory=true, recursion_allowed=true)
texdoc debug-texdocs: texdocs[4] = /etc/texmf/doc (index_mandatory=false, recursion_allowed=true)
texdoc debug-texdocs: texdocs[3] = /var/lib/texmf/doc (index_mandatory=true, recursion_allowed=true)
texdoc debug-texdocs: texdocs[2] = /usr/share/texmf/doc (index_mandatory=true, recursion_allowed=true)
texdoc debug-texdocs: texdocs[2] using index: /usr/share/texmf (shift=doc/)
texdoc debug-texdocs: texdocs[1] = /usr/share/texlive/texmf-dist/doc (index_mandatory=true, recursion_allowed=true)
texdoc debug-texdocs: texdocs[1] using index: /usr/share/texlive/texmf-dist (shift=doc/)
texdoc debug-tlpdb: Using shipped tlpdb data.
texdoc info: Fuzzy search result: titling
Sorry, no documentation found for titling.
If you are unsure about the name, try searching CTAN's TeX catalogue at
http://ctan.org/search.html#byDescription.