The Mac doesn't come with wget, but you can easily make an alias called "wget".
- Open Terminal.
- Type "cd ~/" to make sure you're in your user directory.
- Type "echo 'alias wget="curl -O"' >> ~/.bash_profile" to create a persistent alias.
- Restart Terminal.
- Go to a directory where you want to download a file.
- Type "wget http://www.myurl.com/myfile.pdf" and begin downloading!