Deleted:calc IBS with vcf files with different snfs

Question

[Mali]

I am new to bioinforamits and plink. There are vcf.gz files in my project, and I need to calculate the IBS between each pair. Each vcf represent the whole exome of one person and each pair of vcf doesn't necessarily have the same snfs. Over all I have more than 300 vcf files like this. How can I calc the IBS ?