/usr/share/texmf/tex/latex209/base/ is in latex209-base 25.mar.1992-17.
This file is owned by root:root, with mode 0o755.
..
/usr/share/texmf/tex/latex209/base/addendum.tex
/usr/share/texmf/tex/latex209/base/art10.sty
/usr/share/texmf/tex/latex209/base/art11.sty
/usr/share/texmf/tex/latex209/base/art12.sty
/usr/share/texmf/tex/latex209/base/article.sty
/usr/share/texmf/tex/latex209/base/bezier.sty
/usr/share/texmf/tex/latex209/base/bk10.sty
/usr/share/texmf/tex/latex209/base/bk11.sty
/usr/share/texmf/tex/latex209/base/bk12.sty
/usr/share/texmf/tex/latex209/base/book.sty
/usr/share/texmf/tex/latex209/base/fleqn.sty
/usr/share/texmf/tex/latex209/base/idx.tex
/usr/share/texmf/tex/latex209/base/ifthen.sty
/usr/share/texmf/tex/latex209/base/lablst.tex
/usr/share/texmf/tex/latex209/base/latex.bug
/usr/share/texmf/tex/latex209/base/leqno.sty
/usr/share/texmf/tex/latex209/base/letter.sty
/usr/share/texmf/tex/latex209/base/local.gid
/usr/share/texmf/tex/latex209/base/local.tex
/usr/share/texmf/tex/latex209/base/makeidx.sty
/usr/share/texmf/tex/latex209/base/makeindex.tex
/usr/share/texmf/tex/latex209/base/openbib.sty
/usr/share/texmf/tex/latex209/base/proc.sty
/usr/share/texmf/tex/latex209/base/rep10.sty
/usr/share/texmf/tex/latex209/base/rep11.sty
/usr/share/texmf/tex/latex209/base/rep12.sty
/usr/share/texmf/tex/latex209/base/report.sty
/usr/share/texmf/tex/latex209/base/sample.tex
/usr/share/texmf/tex/latex209/base/showidx.sty
/usr/share/texmf/tex/latex209/base/slides.sty
/usr/share/texmf/tex/latex209/base/small.tex
/usr/share/texmf/tex/latex209/base/testa4.tex
/usr/share/texmf/tex/latex209/base/testpage.tex
/usr/share/texmf/tex/latex209/base/titlepag.sty
/usr/share/texmf/tex/latex209/base/tryfonts.tex
/usr/share/texmf/tex/latex209/base/twocolum.sty