Compressed FASTQ files, (`*.gz`)

  • Files ending in .gz are compressed (zipped) files.
    • The fastq.gz format is a compressed version of a fastq dataset.
    • The fastqsanger.gz format is a compressed version of the fastqsanger datatype, etc.
  • Compression saves space (and therefore your quota).
  • Tools can accept the compressed versions of input files
  • Make sure the datatype (compressed or uncompressed) is correct for your files, or it may cause tool errors.
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