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  • Gen2007
    Member
    • Jun 2010
    • 10

    samtools view without header

    Hi All,

    I'm having trouble filtered MAQ aligned reads from a sam file with no header and converting to BAM. I've tried created the fai file of the reference as suggested by the SAMTOOLS faq, but to no avail.

    When I use the following command:
    samtools view -S lane1.normal.sam -T reduced.reference.fa -q 1

    I get an error: "Parse error at line 1: missing colon in auxiliary data"

    Does anyone have any suggestions?

    Thanks a lot!
  • asangqi
    Junior Member
    • Feb 2011
    • 4

    #2
    you can use samtools view -S xx.sam -t chr.list -q 1 > xx.bam.

    Comment

    • Gen2007
      Member
      • Jun 2010
      • 10

      #3
      i implemented the command you suggested, asanggi:

      samtools view -S xx.sam -t reference.fa.fai -q 1 > xx.bam

      but i still get the same error.

      thanks for your help!
      Last edited by Gen2007; 02-24-2011, 09:16 AM.

      Comment

      • tmanke
        Member
        • Oct 2009
        • 26

        #4
        Perhaps there is a problem with trailing tabs?
        I solved a similar problem using

        sed 's/[ \t]*$//g' samfile

        Thomas

        Comment

        • tanakky
          Junior Member
          • Nov 2011
          • 1

          #5
          I had the same problem, but I could solve with two following command

          sed 's/[ \t]*$//g' samfile (same with Thomas)
          tr -d \\r < samfile > samfile.2

          Thanks
          Yoshiaki

          Comment

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