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Help with seqkit sort increasing file size in multifasta

Hi everyone, I need to sort a big multifasta file (around 160GB) using the seqkit sort option and I've noticed that the sorted output is heavier than the input. Does anybody know why could this happen? I've used seqkit sort -N.

Thanks in advance!

The sorted file has a bigger file size

fasta multifasta seqkit

Does the input file contain long sequence lines while the sorted uses fixed width chunks?

I've checked it and both files have a multiline sequence with a fixed size with this structure:

sequence

If the width is the same on both files the number of lines should be the same right?

please paste the result of 'seqkit stats' and 'seqkit sum' with the two files.

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