Command for the abbreviated author [duplicate]

Question

I'm writing a beamer document, and using the following definition for author

\author[O. Castillo]{Oscar Castillo}

As far as I know, \@author returns the value Oscar Castillo

Question

Is there a command that return the value O. Castillo?

Cheers.

Answer 1

Since you are using beamer, you have \insertshortauthor and \insertauthor:

\documentclass{beamer}

\author[O. Castillo]{\'Oscar Castillo}

\begin{document}

\begin{frame}
\insertshortauthor
\insertauthor
\end{frame}

\end{document}

After a comment, it seems that the idea is to use this to generate some meta-data information for the PDF; in this case one could use \beamer@shortauthor:

\documentclass{beamer}
\title{The Title}
\author[O. Castillo]{\'Oscar Castillo}

\makeatletter
\hypersetup{pdfauthor={\beamer@shortauthor}}
\makeatother

\begin{document}

\begin{frame}
test
\end{frame}

\end{document}