Download A File and wget
Using the cURL package isn't the only way to download a file. You can also use the wget command to download any URL.
The Bash Script
wget http://davidwalsh.name/ -O davidwalsh.name.txt
I'm guessing that wget and cURL aren't the only ways to download a file, but these are two easy ways to do so.
Also, look forward to more posts featuring wget -- it has a plethora of uses!