How can I retrieve only SNPs from the dbSNP's FTP site. The files are gzipped and organized by human chromosome (i.e, chr[1-22,X,Y]), are these for one human? I need only SNPs data for various humans.
If you mean that you want snps from individuals, instead of all together, you can find them in 1000 genomes. Here different individuals from different populations are sequenced and variants are called, including snps.
Maybe you should add to your question what your goal is, what would you like to find?