-\newcommand{\cmd}[1]{\texttt{#1}}
-\newcommand{\func}[1]{\texttt{#1}}
-\newcommand{\macro}[1]{\texttt{#1}}
-\newcommand{\var}[1]{\texttt{#1}}
-\newcommand{\file}[1]{\texttt{#1}}
-\newcommand{\link}[1]{\texttt{#1}}
+\newcommand{\cmd}[1]{\texttt{#1}} % shell command
+\newcommand{\code}[1]{\texttt{#1}} % for simple code
+\newcommand{\func}[1]{%
+\index{#1@{\tt {#1}}}\texttt{#1}%
+} % library function (or system call)
+\newcommand{\macro}[1]{\texttt{#1}} % macro constant
+\newcommand{\var}[1]{\texttt{#1}} % variable
+\newcommand{\file}[1]{\texttt{#1}} % file name
+\newcommand{\link}[1]{\texttt{#1}} % html link
+\newcommand{\ctyp}[1]{\texttt{#1}} % C standard type
+\newcommand{\type}[1]{%
+\index{#1@{\tt {#1}}}\texttt{#1}%
+} % system type
+\newcommand{\param}[1]{\texttt{#1}} % function parameter
+\newcommand{\acr}[1]{\textsl{#1}} % acrostic (for pid, suid, etc.)
+
+
+% per usare latex2html scommentare questi e non includere mdwlist
+%\newenvironment{description*}{\begin{description}}{\end{description}}
+%\newenvironment{itemize*}{\begin{itemize}}{\end{itemize}}
+%\newenvironment{enumerate*}{\begin{enumerate}}{\end{enumerate}}