step 1：導出cookie到cookie.txt。登錄kaggle.com（我用的ie11），點擊收藏夾,點擊添加到收藏夾右邊的三角形，選擇導入導出，選擇導出到文件，選擇cokies，選擇導出。
step 2： wget -cb https://www.kaggle.com/account/login?ReturnUrl=%2Fc%2Fnoaa-fisheries-steller-sea-lion-population-count%2Fdownload%2FKaggleNOAASeaLions.7z --post-data 'username=1030997649@qq.com&password=6393374'
但是這種方法下載的很慢，最后下載下來后，解壓時還出錯了。
於是，我找到了這種方法去解壓文件：
https://www.kaggle.com/c/noaa-fisheries-steller-sea-lion-population-count/discussion/30930
答案1：If it helps anyone: the default ubuntu Archive Manager failed to unpack the file for me. Was only showing the list of folders and files in them. I could unpack the archive by installing p7zip-full (sudo apt-get install p7zip-full) and doing 7z x Kaggle-NOAA-SeaLions -pPassword.
我用這種方法，還是沒有解決問題。有CRC校驗錯誤。
於是，我決定重新下載數據，找到了一種用aria2c的快速下載方法：
https://www.kaggle.com/c/noaa-fisheries-steller-sea-lion-population-count/discussion/32702
sudo apt install aria2
aria2c -c -x 16 -s 16 --load-cookies cookies.txt -p https://www.kaggle.com/c/noaa-fisheries-steller-sea-lion-population-count/download/KaggleNOAASeaLions.7z