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How to extract Jester dataset files?

I am trying to extract the dataset given on link:https://20bn.com/datasets/jester

I am unable to extract these file with no extension. I tried using tar and also what they have mentioned on their website, i.e., 

  cat 20bn-jester-v1-?? | tar zx

Please assist.

Solution

  • As you can read on the web site:

    The video data is provided as one large TGZ archive, split into parts of 1 GB max

    so you need to combine the files and the extract. the command like this can help you:

    cat 20bn-jester-v1-??|gzip -dc|tar xf -

    cat is used to combine all parts in one file, then gzip to decompress the file and on the end tar to extract the file(s)