Parsing a MEGAN file by command line

[matias_irazoqui]

Hi, I have a quite large RMA file (about 40 GBs), and every time I try to open it, my (poor little) PC freezes. I was wondering if there's a way to parse the RMA file by command line and split it into a few parts more "manageable" (I was thinking one file for 'Bacteria', another for 'Archaea', etc, but it can be in any other way posible).
I have access to a couple of servers (without graphical interface), so I can run big processes.
Thanks!

[cliffbeall]

The manual says rma is a binary compressed format - it didn't seem to be recognized by zip, gzip or bzip2 for me although maybe I was doing something wrong.

The latest MEGAN includes a command-line tool but that requires the full, paid version.

You did increase the memory as far as possible by editing the MEGAN.vmoptions file?