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Please work through the documentation and add your comments on the bottom of this page, or email comments to Thank you.

Rationale and background

unpigz-2.3.4 (Parallel Implementation of Gzip) is a fully functional replacement for gzip that exploits multiple processors and multiple cores to the hilt when uncompressed


  1. A CyVerse account. (Register for an CyVerse account here -
  2. Mandatory arguments 
    1. Input - One or more files that needs to be uncompressed
    2. Output folder - Name of the output folder where the compressed files will be placed
  3. Optional Parameters:
    1. Compress faster : Indicates the fastest uncompression method (less compression)
    2. Compress better : indicates the slowest uncompression method (best compression)