LaTeX: Verbatim code on a box with background

The code that follows defines the
  verbcode environment, which is handy to include in a LaTeX document a verbatim code box with a fancy colored background as seen shown in the figure. This code snip produces the figure shown.

\documentclass[11pt]{article}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% verbatim boxed text
\usepackage{fancyvrb,fancybox,calc} 
\usepackage[svgnames]{xcolor} 
\newenvironment{verbcode}{\VerbatimEnvironment% 
  \noindent
  %      {\columnwidth-\leftmargin-\rightmargin-2\fboxsep-2\fboxrule-4pt} 
  \begin{Sbox} 
  \begin{minipage}{\linewidth-2\fboxsep-2\fboxrule-4pt}    
  \begin{Verbatim}
}{% 
  \end{Verbatim}  
  \end{minipage}   
  \end{Sbox} 
  \fcolorbox{black}{LightGray}{\TheSbox} 
} 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
Here is some some code

\begin{verbcode}
$ run_me.sh param1 \ + ]0 
\end{verbcode}

\end{document}

Sources:
http://tex.stackexchange.com/questions/18322/using-fancyvrb-verbatim-environment-from-within-newenvironment
http://groups.google.com/group/latexusersgroup/browse_thread/thread/c8c2e5dd1e9ff5cf
LaTeX code highlighted using: http://www.hilite.me/