オライリーのGNU Make 第3版のPDFを公式WebサイトからDLする

gnumakebook-dl-and-concat.bash

#!/usr/bin/env bash

set -ex

PDF_URL="mae.pdf maegaki.pdf contents.pdf ch01.pdf ch02.pdf ch03.pdf ch04.pdf ch05.pdf ch06.pdf ch07.pdf ch08.pdf ch09.pdf ch10.pdf ch11.pdf ch12.pdf appA.pdf appB.pdf appC.pdf index.pdf ato.pdf"
URL_PREFIX="https://www.oreilly.co.jp/library/4873112699/"

for i in ${PDF_URL}
do
    wget -O "${i}" "${URL_PREFIX}${i}"
    sleep 3s
done

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=gnumakebook.pdf -dBATCH ${PDF_URL}