generate homework report from many images

reportGen.sh

#!/bin/bash

files=$(ls photo*.jpg)
count=1
for i in $(echo $files); do
  cp $i ./$count.jpg
  jpegoptim --size=100K $count.jpg
  count=$(($count+1))
done

p=$(ls -t [0-9]*.jpg)
l=$(for i in $(echo $p); do                           
        echo '\includegraphics[width=\linewidth]{'$i'}'
    done)
echo '\documentclass{article}
\usepackage[T2A]{fontenc}
\usepackage[utf8x]{inputenc}
\usepackage[english, russian]{babel}
\usepackage{graphicx}
\graphicspath{ {./} }
\begin{document}
\Huge
ДЗ \\
ФИО \\
ГРУППА \\
ШИФР \\' > a.tex

echo "$l" >> a.tex

echo '\end{document}' >> a.tex

rm -f a.pdf

latexmk -pdf ./a.tex