This file is indexed.

/usr/share/lyx/examples/thesis/chapter-2.lyx is in lyx-common 2.1.4-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#LyX 2.1 created this file. For more info see http://www.lyx.org/
\lyxformat 474
\begin_document
\begin_header
\textclass scrbook
\begin_preamble
% increases link area for cross-references and autoname them
% if you change the document language to e.g. French
% you must change "extrasenglish" to "extrasfrench"
\AtBeginDocument{%
 \renewcommand{\ref}[1]{\mbox{\autoref{#1}}}
}
\def\refnamechanges{%
 \renewcommand*{\equationautorefname}[1]{}%
 \renewcommand{\sectionautorefname}{sec.\negthinspace}%
 \renewcommand{\subsectionautorefname}{sec.\negthinspace}%
 \renewcommand{\subsubsectionautorefname}{sec.\negthinspace}%
 \renewcommand{\figureautorefname}{Fig.\negthinspace}%
 \renewcommand{\tableautorefname}{Tab.\negthinspace}%
}
\@ifpackageloaded{babel}{\addto\extrasenglish{\refnamechanges}}{\refnamechanges}

% in case somebody want to have the label "Equation"
%\renewcommand{\eqref}[1]{Equation~(\negthinspace\autoref{#1})}

% that links to image floats jumps to the beginning
% of the float and not to its caption
\usepackage[figure]{hypcap}

% the pages of the TOC is numbered roman
% and a pdf-bookmark for the TOC is added
\let\myTOC\tableofcontents
\renewcommand\tableofcontents{%
  \frontmatter
  \pdfbookmark[1]{\contentsname}{}
  \myTOC
  \mainmatter }

% makes caption labels bold
% for more info about these settings, see
% http://mirrors.ctan.org/macros/latex/contrib/koma-script/doc/scrguien.pdf
\setkomafont{captionlabel}{\bfseries}
\setcapindent{1em}

% enables calculations
\usepackage{calc}

% fancy page header/footer settings
% for more information see section 9 of
% ftp://www.ctan.org/pub/tex-archive/macros/latex2e/contrib/fancyhdr/fancyhdr.pdf
\renewcommand{\chaptermark}[1]{\markboth{#1}{#1}}
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}

% increases the bottom float placement fraction
\renewcommand{\bottomfraction}{0.5}

% avoids that floats are placed above its sections
\let\mySection\section\renewcommand{\section}{\suppressfloats[t]\mySection}
\end_preamble
\options intoc,bibliography=totoc,index=totoc,BCOR10mm,captions=tableheading,titlepage,fleqn
\use_default_options true
\master thesis.lyx
\begin_modules
customHeadersFooters
\end_modules
\maintain_unincluded_children false
\language english
\language_package default
\inputencoding auto
\fontencoding global
\font_roman lmodern
\font_sans lmss
\font_typewriter lmtt
\font_default_family default
\use_non_tex_fonts false
\font_sc false
\font_osf false
\font_sf_scale 100
\font_tt_scale 100
\graphics default
\default_output_format default
\output_sync 0
\bibtex_command bibtex
\index_command default
\float_placement h
\paperfontsize 12
\spacing single
\use_hyperref true
\pdf_title "Your title"
\pdf_author "Your name"
\pdf_bookmarks true
\pdf_bookmarksnumbered true
\pdf_bookmarksopen true
\pdf_bookmarksopenlevel 1
\pdf_breaklinks false
\pdf_pdfborder true
\pdf_colorlinks false
\pdf_backref false
\pdf_pdfusetitle false
\pdf_quoted_options "pdfpagelayout=OneColumn, pdfnewwindow=true, pdfstartview=XYZ, plainpages=false"
\papersize a4paper
\use_geometry false
\use_package amsmath 2
\use_package cancel 0
\use_package stackrel 0
\use_package stmaryrd 0
\use_package amssymb 2
\use_package mathtools 0
\use_package esint 1
\use_package mhchem 1
\use_package mathdots 1
\use_package undertilde 0
\cite_engine basic
\cite_engine_type default
\biblio_style plain
\use_bibtopic false
\use_indices false
\paperorientation portrait
\suppress_date false
\use_refstyle 0
\branch NoChildDocument
\selected 0
\filename_suffix 0
\color #ff0000
\end_branch
\index Index
\shortcut idx
\color #008000
\end_index
\secnumdepth 3
\tocdepth 2
\paragraph_separation skip
\defskip medskip
\quotes_language english
\papercolumns 1
\papersides 2
\paperpagestyle fancy
\tracking_changes false
\output_changes false
\html_math_output 0
\html_css_as_file 0
\html_be_strict false
\end_header

\begin_body

\begin_layout Left Header
\begin_inset Argument 1
status open

\begin_layout Plain Layout
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
chaptername
\end_layout

\end_inset


\begin_inset space ~
\end_inset


\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
thechapter
\end_layout

\end_inset


\end_layout

\end_inset


\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
rightmark
\end_layout

\end_inset


\begin_inset Note Note
status collapsed

\begin_layout Plain Layout
Enable page headers and add the chapter to the header line.
\end_layout

\end_inset


\end_layout

\begin_layout Right Header
\begin_inset Argument 1
status open

\begin_layout Plain Layout
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
leftmark
\end_layout

\end_inset


\end_layout

\end_inset


\end_layout

\begin_layout Left Footer
\begin_inset Argument 1
status open

\begin_layout Plain Layout
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
thepage
\end_layout

\end_inset


\end_layout

\end_inset


\end_layout

\begin_layout Center Footer

\end_layout

\begin_layout Right Footer
\begin_inset Argument 1
status open

\begin_layout Plain Layout

\end_layout

\end_inset


\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
thepage
\end_layout

\end_inset


\end_layout

\begin_layout Chapter
Title of next chapter
\end_layout

\begin_layout Section
Overview
\end_layout

\begin_layout Standard
bla bla bla bla bla bla bla bla bla bla bla bla bla PPS
\begin_inset CommandInset nomenclature
LatexCommand nomenclature
symbol "PPS"
description "Polyphenylene sulfide"

\end_inset

 bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
 bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
 bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
 bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
 bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla bla
 bla bla bla bla bla bla bla, see 
\begin_inset CommandInset citation
LatexCommand cite
key "Rich1921,Marq1963"

\end_inset

.
\end_layout

\begin_layout Section
The next section
\end_layout

\begin_layout Standard
\begin_inset Branch NoChildDocument
status collapsed

\begin_layout Standard
\begin_inset CommandInset bibtex
LatexCommand bibtex
bibfiles "thesisExample"
options "alpha"

\end_inset


\end_layout

\begin_layout Standard
\begin_inset CommandInset nomencl_print
LatexCommand printnomenclature
set_width "custom"
width "2.5cm"

\end_inset


\end_layout

\end_inset


\end_layout

\end_body
\end_document