gnuplot_pdflatex.sh

#!/usr/bin/env bash

if [ $# -lt 2 ]; then
   echo "Number of arguments should at least be 2."
   echo "$0 \"gnuplot commands\" \"pdf_file\" [\"xsize\"] [\"ysize\"]"
   exit 1
fi

tmpdir=`mktemp -d 2>/dev/null || mktemp -d -t 'mytmpdir'`
filename=$tmpdir/$2
tex_file=${filename%.pdf}".tex"
tex_fig=${filename%.pdf}"fig_.tex"

XSIZE="8.0cm"
if [ $# -gt 2 ]; then
   XSIZE=$3
fi

YSIZE="5.6cm"
if [ $# -gt 3 ]; then
   YSIZE=$4
fi

gnuplot << EOF
   set terminal epslatex size $XSIZE, $YSIZE linewidth 2 color;
   set output "$tex_fig";
   # set ylabel offset 2, 0;
   # set xlabel offset 0, 0.5;
   set key samplen 2;
   $1;
   exit;
EOF

epsfile=${tex_fig%.tex}".eps"
epstopdf $epsfile

echo "\documentclass[a4paper]{standalone}
\usepackage{graphicx}
\usepackage[active,tightpage]{preview}
\begin{document}
\begin{preview}
\input{$tex_fig}
\end{preview}
\end{document}" > $filename

pdflatex -output-directory $tmpdir $filename
cp $filename $2