On Sun, Mar 11, 2012 at 10:45 PM, lina <lina.lastn...@gmail.com> wrote:
> A
> 7.803481E-01   8.228973E-01   7.515242E-01    2      1833
> -5.5000000000     308.3889771284     5   0   7     1.7084151661
> 1.6790503987       2.75458
> 53558
>  7.866901E-01   8.410519E-01   9.981456E-01    2     14485
> -5.5000000000     269.6201271260    39   4   7    -2.5561279716
> -3.5975355928       1.5117
> 155069
> C
>  7.735338E-01   9.981671E-01   7.735798E-01    2     11514
> -5.5000000000     289.1918534266    31   1   7    -5.6311359613
> -0.0502358314       0.0768
> 146957
>  5.907322E-02   6.045568E-02   3.388628E-02    1        28
> -6.5000000000     336.0228260493     1   2   7     0.8177802191
> 3.9634621584      -3.0314
> 370501
> A
> 2.764127E-02   3.230161E-02   1.633790E-02    1        51
> -6.5000000000     319.7604886848     1   3   7     0.7583797888
> 3.5176580829      -1.87872
> 93439
>  5.960780E-02   2.111333E-02   1.066835E-01    1        62
> -6.5000000000     297.7363059936     1   1   7     2.2257828331
> 3.7887567121      -3.4478
> 600377
>
>
> I am so troubled with extract the lines after A but not the lines
> under C out, so the final result is
>
> 7.803481E-01   8.228973E-01   7.515242E-01    2      1833
> -5.5000000000     308.3889771284     5   0   7     1.7084151661
> 1.6790503987       2.75458
> 53558
>  7.866901E-01   8.410519E-01   9.981456E-01    2     14485
> -5.5000000000     269.6201271260    39   4   7    -2.5561279716
> -3.5975355928       1.5117
> 1550692.764127E-02   3.230161E-02   1.633790E-02    1        51
> -6.5000000000     319.7604886848     1   3   7     0.7583797888
> 3.5176580829      -1.87872
> 93439
>  5.960780E-02   2.111333E-02   1.066835E-01    1        62
> -6.5000000000     297.7363059936     1   1   7     2.2257828331
> 3.7887567121      -3.4478
> 600377
>
>
> Thanks for you suggestions,

What I have come up so far :

#!/usr/bin/env perl

use strict;
use warnings;

my $filename = "try.txt";

open my $fh, '<', $filename or die "Couldn't read $filename";



while (my $line = <$fh>){       
        if ($line =~ /^A$/){
                ## Here I don't know how to proceed further
                print $line;
        }
}

Thanks

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