I soil my shorts,
Precum mess for you.
Can’t wait to get home,
I’ll tell what I’ll do.
I’ll look at your pictures,
Last night’s latex in black. 86 more words
For Ubuntu 16.0.4 just install the following from terminal:
sudo wget http://mirrors.ctan.org/macros/latex/contrib/titlesec/titlesec.sty -O /usr/share/texlive/texmf-dist/tex/latex/titlesec/titlesec.sty