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  • bharat_iyengar
    Member
    • Dec 2012
    • 20

    #1

    IO redirection in trimmomatic

    Is it possible to pipe inputs to trimmomatic. Similarly can I redirect the output to stdout ?
  • jwfoley
    Senior Member
    • Jun 2009
    • 183

    #2
    In Unix-like operating systems it is possible to redirect any input or output; if the program is missing this option, simply use "/dev/stdin" and "/dev/stdout" as the filenames. The only problem is if the program needs to make multiple passes through the input or read it nonconsecutively, but I assume Trimmomatic doesn't.

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    • westerman
      Rick Westerman
      • Jun 2008
      • 1104

      #3
      Well, the "problem", as it were, with Trimmomatic is that it wants to input 2 files (R1 pre, R2 pre) and output 4 files -- R1 post, R2 post, R1 unpaired, R2 unpaired. Given that 4 outputs are required then simple piping will not work. I have not tried it but you could probably set up FIFOs for the 4 files.

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