#!/bin/sh

set -e

inf=-
ouf=-

dir="$(mktemp -d /tmp/latex.XXXXXX)"
trap 'rm -r "$dir"' EXIT

cat "$inf" >"$dir/file.tex"

for pass in 1 2; do
    (cd "$dir"; latex file.tex >&2)
done

(cd "$dir"; dvips file)

if [ "$ouf" = - ]; then
    cat "$dir/file.ps"
else
    cat "$dir/file.ps" >"$ouf"
fi