Might be nice to note that wget may not be available on Mac, but curl probably already exists. Also zcat should be zcat < file.warc.gz instead of zcat file.warc.gz.
(I carefully went through the course website, entire assignment READMEs and pdfs, but did not find anywhere that says "you are supposed to complete your assignments on a Linux machine". It is probably the environment available to Stanford students so this does not seem worth noting, but it would be tremendously helpful to anyone who is following the course and completing the assignments at home)
Might be nice to note that
wgetmay not be available on Mac, butcurlprobably already exists. Alsozcatshould bezcat < file.warc.gzinstead ofzcat file.warc.gz.(I carefully went through the course website, entire assignment READMEs and pdfs, but did not find anywhere that says "you are supposed to complete your assignments on a Linux machine". It is probably the environment available to Stanford students so this does not seem worth noting, but it would be tremendously helpful to anyone who is following the course and completing the assignments at home)