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  • Sorting barcoded Illumina data?

    old delete
    Last edited by xincognitax; 06-02-2019, 08:57 AM. Reason: old delete

  • #2
    There is probably a better way but here are a couple of commands you will probably find useful and can play with to accomplish your goal. This will take the barcode from the header and put it at the end of the read, thus allowing you to analyze as you normally would. I'm not much of a computer person either but I had to google around a little while ago to figure this type of thing out for a different purpose.

    sed -n '1,${p;n;}' [file] > odd_lines
    sed -n '2,${p;n;}' [file] > even_lines

    The odd_lines file will have the headers and the even_lines file will have the reads. Then, cut the odd_lines file to abstract the barcode.

    cut -f2 -d # odd_lines > part_1
    cut -f1 -d / part_1 > barcodes

    Then paste the barcodes to the ends of the reads and get rid of the tabs that will be between them:

    paste even_lines barcodes | tr -d '\011' > reads_with_barcodes

    Then put the header part lines together without the barcodes:

    cut -f1 -d # odd_lines > first_head
    cut -f2 -d / odd_lines > second head

    paste first_head second_head | tr '\t' '#/' > headers_without_barcodes

    and then finally put the two files back together:

    paste headers_without_barcodes reads_with_barcodes | tr '\t' '\n' > new_file_to_analyze

    This should work, although there may be typos.

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    • #3
      old delete
      Last edited by xincognitax; 06-02-2019, 08:57 AM.

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