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fixed code formatting
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edit approved Dec 3, 2015 at 18:27
David King
edit approved Dec 3, 2015 at 18:27
David King
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I have a file(pdb)like this: ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 2 CA LEU A 2 7.613 12.686 -0.404 1.00 0.00 C
ATOM 8 CD2 LEU A 2 7.005 14.461 2.993 1.00 0.00 C
ATOM 20 N SER A 3 9.372 11.018 -0.564 1.00 0.00 N
ATOM 21 CA SER A 3 10.112 9.794 -0.130 1.00 0.00 C
ATOM 22 C SER A 3 9.128 8.620 0.057 1.00 0.00 C
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N
ATOM 32 CA PRO A 4 7.582 7.018 -0.934 1.00 0.00 C
I

ATOM      1  N   LEU A   2       6.630  12.294  -1.457  1.00  0.00           N  
ATOM      2  CA  LEU A   2       7.613  12.686  -0.404  1.00  0.00           C  
ATOM      8  CD2 LEU A   2       7.005  14.461   2.993  1.00  0.00           C  
ATOM     20  N   SER A   3       9.372  11.018  -0.564  1.00  0.00           N  
ATOM     21  CA  SER A   3      10.112   9.794  -0.130  1.00  0.00           C  
ATOM     22  C   SER A   3       9.128   8.620   0.057  1.00  0.00           C  
ATOM     31  N   PRO A   4       8.542   8.135  -1.026  1.00  0.00           N  
ATOM     32  CA  PRO A   4       7.582   7.018  -0.934  1.00  0.00           C

I need to take the first line with N atom and skipping the next one and taking the following one: the output matrix will looks like this, How can I do it with awk or other command? ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N

ATOM      1  N   LEU A   2       6.630  12.294  -1.457  1.00  0.00           N  
ATOM     31  N   PRO A   4       8.542   8.135  -1.026  1.00  0.00           N

I have a file(pdb)like this: ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 2 CA LEU A 2 7.613 12.686 -0.404 1.00 0.00 C
ATOM 8 CD2 LEU A 2 7.005 14.461 2.993 1.00 0.00 C
ATOM 20 N SER A 3 9.372 11.018 -0.564 1.00 0.00 N
ATOM 21 CA SER A 3 10.112 9.794 -0.130 1.00 0.00 C
ATOM 22 C SER A 3 9.128 8.620 0.057 1.00 0.00 C
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N
ATOM 32 CA PRO A 4 7.582 7.018 -0.934 1.00 0.00 C
I need to take the first line with N atom and skipping the next one and taking the following one: the output matrix will looks like this, How can I do it with awk or other command? ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N

I have a file(pdb)like this:

ATOM      1  N   LEU A   2       6.630  12.294  -1.457  1.00  0.00           N  
ATOM      2  CA  LEU A   2       7.613  12.686  -0.404  1.00  0.00           C  
ATOM      8  CD2 LEU A   2       7.005  14.461   2.993  1.00  0.00           C  
ATOM     20  N   SER A   3       9.372  11.018  -0.564  1.00  0.00           N  
ATOM     21  CA  SER A   3      10.112   9.794  -0.130  1.00  0.00           C  
ATOM     22  C   SER A   3       9.128   8.620   0.057  1.00  0.00           C  
ATOM     31  N   PRO A   4       8.542   8.135  -1.026  1.00  0.00           N  
ATOM     32  CA  PRO A   4       7.582   7.018  -0.934  1.00  0.00           C

I need to take the first line with N atom and skipping the next one and taking the following one: the output matrix will looks like this, How can I do it with awk or other command?

ATOM      1  N   LEU A   2       6.630  12.294  -1.457  1.00  0.00           N  
ATOM     31  N   PRO A   4       8.542   8.135  -1.026  1.00  0.00           N
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how to make a file with AWK from different lines

I have a file(pdb)like this: ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 2 CA LEU A 2 7.613 12.686 -0.404 1.00 0.00 C
ATOM 8 CD2 LEU A 2 7.005 14.461 2.993 1.00 0.00 C
ATOM 20 N SER A 3 9.372 11.018 -0.564 1.00 0.00 N
ATOM 21 CA SER A 3 10.112 9.794 -0.130 1.00 0.00 C
ATOM 22 C SER A 3 9.128 8.620 0.057 1.00 0.00 C
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N
ATOM 32 CA PRO A 4 7.582 7.018 -0.934 1.00 0.00 C
I need to take the first line with N atom and skipping the next one and taking the following one: the output matrix will looks like this, How can I do it with awk or other command? ATOM 1 N LEU A 2 6.630 12.294 -1.457 1.00 0.00 N
ATOM 31 N PRO A 4 8.542 8.135 -1.026 1.00 0.00 N

Thank you