How do I make the section text in capital letters?

How to format the section with capital letters and leave the TOC text in normal format.

I want to use this command:

\section{Section Text}

with the result similar to this:

\section[Section Text]{\MakeUppercase{Section Text}}

I'm using the following section configuration:

\def\section{\@startsection{section}{1}{\z@}{\baselineskip}{\baselineskip}{\centering\normalfont\sffamily\bfseries}}%

To get a result of this type:

Contents

1. Section Text . . . . . page number
2. ...

1 SECTION TEXT

text text text. I would like to use the section title in sans serif font and uppercase.

is it possible?