Linux与UNIX Shell编程指南教程（30章）

刚刚在网上看到。现在在学shell,顺便写个script，让它自动下载这30个pdf
$vim autoget

#!/bin/bash
for ((a=1;a<=30;a++))
do
if [ $a -lt 10 ]; then
    wget -c http://ftp.btbu.edu.cn/ftp/pub/EBook/Unix+Programming/Linux%D3%EBUNIX%20Shell%B1%E0%B3%CC%D6%B8%C4%CF/00$a.pdf
else 
    wget -c http://ftp.btbu.edu.cn/ftp/pub/EBook/Unix+Programming/Linux%D3%EBUNIX%20Shell%B1%E0%B3%CC%D6%B8%C4%CF/0$a.pdf
fi
done