Hello I've found here a thread talking about wget.
I have looked for installing wget in mac. Then, I tried to download the files using this command:
wget -nv --content-disposition (https://one.ubuntu.com/files/#f=f%2FUntitled%2520Folder)
It didn't work. (It downloaded some undetermined file of 1700 bytes.)
I then found this: http://lifehacker.com/161202/geek-to-live--mastering-wget and tried
wget -r -l1 -H -t1 -nd -N -np -A.mp3 -erobots=off -i Lessonmp3.txt
This is the link to the Lessonmp3.txt.
I then tried
wget -A.mp3 -A.pdf (https://one.ubuntu.com/files/#f=f%2FUntitled%2520Folder)
It downloads the same 1700 byte file but deletes it afterwards.
I am quite computer illiterate. Please help!