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  • patricia08
    Junior Member
    • Jan 2021
    • 1

    #1

    Trimmomatic file error

    Hi everyone!

    I am a Biology undergrad and I use bioinformatics for my Bachelor thesis. I'm still learning so be nice to me. There is something wrong with my command for trimmomatic, it executes, but the resulting file has two problems: it is too large and its name is followed by LEADIN:25, which is part of the command, like this: output.fastq.gzLEADIN:25. This is the command I use:

    Code:
    java -jar $trimmomatic SE input.fastq.gz output.fastq.gz
    LEADIN:25 TRAILING:25 SLIDINGWINDOW:4:20 MINLEN:25
    This is the output:

    Code:
    TrimmomaticSE: Started with arguments:
     input.fastq.gz output.fastq.gzLEADIN:25 TRAILING:25 SLIDINGWINDOW:4:20 MINLEN:25
    Automatically using 1 threads
    Quality encoding detected as phred33
    Input Reads: 33081999 Surviving: 20602256 (62,28%) Dropped: 12479743 (37,72%)
    TrimmomaticSE: Completed successfully
    It looks like the LEADIN:25 part is not working, that's why the output file is too large, even larger than the input file. So I think there must be some separation between the output and the LEADIN:25 in the command but I don't know how to put it.

    Can you tell me what is wrong?

    Thank you!

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