All things related to Latex syntax and also Latex setup on Linux using vim and vimtex.
i.~e.
\\
or \\\\
\footnote{\url{www.hallo.com}}
Uses suffix package from bigfoot package. (see CTAN) https://www.namsu.de/Extra/pakete/Acronym.html
\usepackage[printonlyused,withpage]{acronym}
\begin{acronym}
\setlength{\itemsep}{-0.3cm}
\acro{ACS}{Institute for Automation of Complex Power Systems}
\acro{IB}{InfiniBand}
\end{acronym}
\ac{HP} % normal
\acp{HP} % for plural
\acf{HP} % long and abbreviation
\acl{HP} % only long version
\acs{HP} % only short form
sudo /usr/local/texlive/2017/bin/x86_64-linux/tlmgr update --self
sudo /usr/local/texlive/2017/bin/x86_64-linux/tlmgr install acronym
# https://en.wikibooks.org/wiki/LaTeX/Installing_Extra_Packages#Installing_a_package
latex packagename.ins
sudo cp -r \
~/Downloads/packagename/styfilename.sty \
/usr/local/texlive/texmf-local/texmf/tex/packagename
sudo texhash