\newcommand{\ids}[1]{\textsl{#1}} % Identifier (PID, GID, UID, TID, ecc.)
\newcommand{\envvar}[1]{\texttt{#1}} % environment variable
\newcommand{\ids}[1]{\textsl{#1}} % Identifier (PID, GID, UID, TID, ecc.)
\newcommand{\envvar}[1]{\texttt{#1}} % environment variable