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awk cross-referencing between two files
06-06-2011
2 SOL 563
2 SOL 565
3 SOL 589
2 SOL 603
1 SOL 612
1 SOL 621
2 SOL 623
3 SOL 770
3 SOL 771
3 SOL 772
3 SOL 773
2 SOL 774ATOM 58262 OW SOL 18120 27.770 75.370 125.740 ATOM 58263 HW1 SOL 18120 28.020 75.170 124.790 ATOM 58264 HW2 SOL 18120 28.490 75.930 126.160 ATOM 58265 OW SOL 18121 28.420 85.640 128.910 ATOM 58266 HW1 SOL 18121 27.430 85.700 129.010 ATOM 58267 HW2 SOL 18121 28.650 84.840 128.350 ATOM 58268 OW SOL 18122 25.670 84.980 115.400 ATOM 58269 HW1 SOL 18122 25.530 85.050 116.390 ATOM 58270 HW2 SOL 18122 26.510 84.470 115.220 ATOM 58271 OW SOL 18123 22.720 82.610 124.230 ATOM 58272 HW1 SOL 18123 23.580 82.730 124.730 ATOM 58273 HW2 SOL 18123 22.300 81.740 124.500 ATOM 58274 OW SOL 18124 31.360 78.340 124.340 ATOM 58275 HW1 SOL 18124 31.570 79.080 124.980 ATOM 58276 HW2 SOL 18124 30.470 78.510 123.910
awk '{a[d++]=$1}END{for(i=1;i<=d;i++){ if ( a[i] < 3 ) print a[i] }}' < file1|
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