I having a problem with MEGAN 5. I'm working with some quite large RMA files (40 Gb aprox), built using the trimmed reads and a blast run. The problem is that my (poor little) PC always hangs up when I try to open them. So, I was wondering if there's a way to parse a file via Megan command line, dividing it in "Bacteria", "Archaeas" & "Viruses" or whatever, so the files become a little bit smaller. Thanks!