Recently I had cause to define a macro called \marks. If I try something like


I get the error

! LaTeX Error: Command \marks already defined.

In LaTeX, if I do \show\marks I get > \marks=\marks, which I think means it's a TeX primitive, but if I execute the same show command in TeX, I get > \marks=undefined. I can't find \marks in any documentation that I have. What does it do?


\marks is an etex primitive command. It extends the \mark command of the original tex. You can use it to store text on the current page which you want to use at shipout in the headers.

\lhead{\topmarks\mymark, \botmarks\mymark, \firstmarks\mymark}
\marks\mymark{A first mark}

\marks\mymark{A second mark}


text \marks\mymark{A third mark}

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.