How to get unique feature count from a field w.r.t another field using ogrinfo?

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We have some 40 folders which has two - three tab files in each folder. Table structure will be the same for all the tab files. What i would like to extract is Feature Count, LineNo (will be 0,1,2,3,etc..), StationNo (Will be from 0 - 85). LineNo and StationNo are related. For LineNo "0" = StationNo will be "0,1,2 upto 85" and again for LineNo "1" = StationNo will be "0,1,2,3 upto 85" (see the image).

So how to extract these informations using ogrinfo ?



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