Off topic:Match col values from two different datasets (dbSNP ID's) and merge dataset

Question

[rkprofile2019]

I have two datasets A and B. I wish to match dbSNP ID's from dataset A with B. If matched, then for that SNPid's want to fetch the other col values for that row and merge with cols present in dataset A.

Link for ref: https://ibb.co/3vXBv75

New in Bioinformatics, exploring in Linux scripts or R.