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  • Do you want it sorted in place or do you want the output in a new file? Commented Jul 1, 2015 at 19:35
  • Seems like a duplicate. Commented Jul 1, 2015 at 19:37
  • 1
    Just to be clear: do you want the first field to be sorted lexicographically (chr10...chr19 between chr1 and chr2), but the other fields numerically (7 before 10)? Commented Jul 1, 2015 at 21:54
  • sort -k1,1 -k2,2n -k3,3n Commented Jul 1, 2015 at 22:03
  • @StéphaneChazelas: Can you tell me what does 2,2n and 3,3n means basically why n and 2,2 and 3,3?? Commented Jul 2, 2015 at 14:47