# create a directory

mkdir brain_tumor_dataset

cd brain_tumor_dataset

# download the dataset

wget -O temp.zip -q https://ndownloader.figshare.com/articles/1512427/versions/5

# unzip the dataset and delete the zip

unzip -q temp.zip && rm temp.zip

# concatenate the multiple zipped data in a single zip

cat brainTumorDataPublic_* > brainTumorDataPublic_temp.zip

zip -FF brainTumorDataPublic_temp.zip --out data.zip > progress.txt

# remove the temporary files

rm brainTumorDataPublic_*

# unzip the full archive and delete it 

unzip -q data.zip -d data && rm data.zip

# check that "data" contains 3064 files

ls data | wc -l