On Mon, Mar 12, 2012 at 12:11 AM, Zheng Du <dea...@gmail.com> wrote:
> Hi Lina,
>
> A simple solution I can provide is:
>
>
>
> while (my $line = <$fh>){
> if ($line =~ /^A$/){
> # read 8 lines
> # print each line
> }
Thanks, it's a very large file more than 5 MB with different lines.
> }
>
>
> 2012/3/11 lina <lina.lastn...@gmail.com>
>>
>> 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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>>
>
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