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Hi,

I have only been learning Perl for less than 2 weeks. I am a C++ programmer.

I have attached a portion of the data below. The data is in file1.txt. I would like to move the data from file1.txt to file2.txt. But, I only want to keep the numbers.

Eg: I want row 1 to look like this:

1 1549367 11 8 3 11 0 -12.00 6.00 -0.25 -3.00 0.00 -1.67 -12.00 6.00 -0.64

Instead of this:

1 Chr26 1549367 11 GGGGGGGAAGA 8 3 Transition 11 0 -12.00 6.00 -0.25 -3.00 0.00 -1.67 -12.00 6.00 -0.64

This is what I have done so far (file1.txt will be in @ARGV):

open FILE2, "+>file2.txt" or die "Cant not open file2.txt!"; my $line; while($line = readline(ARGV)) { print FILE2 $line; }

The code above only copies content of file1.txt (ARGV) into file2.txt.

I tried to use ‘seek’ and ‘tell()’ but, to solve my problem above but, I got confused :(

I also tried this:

Open(FILE, “file1.txt”) @theFile = <FILE>;

This puts every row in the array @the File. But, I can I now modify the elements of one row? (I’m still a novice Perl programmer)

Thank you for your help

/………………………………………………………………………………………../

The file portion

1 Chr26 1549367 11 GGGGGGGAAGA 8 3 Transition 11 0 -12.00 6.00 -0.25 -3.00 0.00 -1.67 -12.00 6.00 -0.64 1 Chr26 1549501 15 ccCctctccccctCC 12 3 Transition 3 12 -17.00 6.00 0.50 1.00 6.00 2.67 -17.00 6.00 0.93 1 Chr26 1549552 14 AagAAaaAAAagga 11 3 Transition 6 8 -31.00 6.00 -2.09 -12.00 3.00 -5.67 -31.00 6.00 -2.86 1 Chr26 1549563 14 tAAaaAAAattat^Ft 9 5 Transversion 5 9 -7.00 6.00 0.22 -64.00 4.00 -18.40 -64.00 6.00 -6.43 1 Chr26 1549726 14 TtTtctTtTtTTTT 13 1 Transition 8 6 -3.00 6.00 1.92 6.00 6.00 6.00 -3.00 6.00 2.21 2 Chr26 1549737 16 T+1Atttt+1aT+1At+1aTt+1aT+1AT+1AT+1AT+1AtT+1A^FA 15 11 Transversion 16 10 -64.00 6.00 -35.67 -64.00 6.00 -46.18 -64.00 6.00 -40.12 2 Chr26 1549815 9 CtCTTTTTT 7 2 Transition 8 1 -3.00 6.00 -0.14 -9.00 0.00 -4.50 -9.00 6.00 -1.11 1 Chr26 1549914 12 gGGGGGGGAGgg 11 1 Transition 9 3 -9.00 6.00 1.18 -4.00 -4.00 -4.00 -9.00 6.00 0.75 1 Chr26 1550018


In reply to How to parse this file by hervebags

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