my Latex and Tex4ht cheat sheet

The tabular is another such environment, designed for formatting your data into
nicely arranged tables. Arguments are required after the environment declaration to
describe the alignment of each column. The number of columns does not need to
be specified as it is inferred by looking at the number of arguments provided.
It is also possible to add vertical lines between the columns here.
The following symbols are available to describe the table columns:
l left-justified column
c centered column
r right-justified column
p{width} paragraph column with text vertically aligned at the top
m{width} paragraph column with text vertically aligned in the middle
b{width} paragraph column with text vertically aligned at the bottom
| vertical line
|| double vertical line
Once in the environment,
& column separator
\\ start new row
\hline horizontal line
to adjust the spacing between rows in a latex table, add square
brackets and the size adjustment after the linebreak.
for instance, to compress rows by 1 inch:
entry1 & entry2 & entry3 \\[-1in]
2.14 passing flag from command line to pdflatex and htlatex?
for htlatex
htlatex main.tex "" "" ""
"\def\flag{}"
for pdflatex
pdflatex "\def\flag{}\input{main.tex}"
and now inside main.tex write
\documentclass{article}
\begin{document}
\ifdefined\flag
yes
\else
no
\fi
\end{document}
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