File name with underscore as figure caption [duplicate]

Question

Possible Duplicate:
Escaping from the escaping hell

I did scour the internet for solution but I found no satisfactory answer for this problem.

I have a bash script that searches my folder for .pdf images and creates a latex file with several includegraphics commands with the file names as the figure caption.

However, my file names have underscores and this is unavoidable. When I run pdflatex on the below latex file, I do get a pdf file with all my figures as required but the captions are all italicized or subscripted.

Any ideas on how I might avoid this (how should I allow underscores in figure captions?):

Latex file:

\documentclass[a4paper,10pt]{article}
\usepackage{setspace}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{eps2pdf}
\usepackage{subfigure}
\usepackage{float}
\usepackage[super,numbers,sort&compress]{natbib}
\usepackage{color}
\usepackage{grrfile}
\newcommand{\hilight}[1]{\colorbox{yellow}{#1}}
\renewcommand{\thefootnote}{\alph{footnote}}


% \usepackage[dvips]{hyperref}

\date{07/31/12}

\begin{document}

\clearpage


\begin{figure}[h] 
\begin{center} 
\centering 
\includegraphics[scale=0.75]{/home/dnaneet/Research/Dissertation/APS2012/G=0.0/L_2lambda_max_1wl_zg_2m.pdf} 
\caption{L_2lambda_max_1wl_zg_2m.pdf} 
\label{fig:fig1} 
\end{center} 
\end{figure}
\end{document}

Edit:

Using the underscore package helped only partially:

• The caption is fine now and the file name is displayed.

• Since the file name has underscore, that messed up the path and hence the figures aren't displayed anymore.

Answer 1

Using \detokenize{L_2lambda_max_1wl_zg_2m.pdf} removes the math interpretation of _ and adding \usepackage[T1]{fontenc} allows for the correct printing of _ inside the caption. For completeness, the following setup should work:

\usepackage[T1]{fontenc}% http://ctan.org/pkg/fontenc
%...

\begin{figure}[h] 
\begin{center} 
\centering 
\includegraphics[scale=0.75]{/home/dnaneet/Research/Dissertation/APS2012/G=0.0/L_2lambda_max_1wl_zg_2m.pdf} 
\caption{\detokenize{L_2lambda_max_1wl_zg_2m.pdf} }
\label{fig:fig1} 
\end{center} 
\end{figure}
\end{document}