Question about seqkit sort function

Question

[FJCF]

Hi everyone, I need to use seqkit sort option to sort a multifasta file by its sequences name. I've been using seqkit sort -N multifasta.fa. However, I've noticed that this command adds a separator between the sequences (--). Anyone knows why is this happening and how to avoid it?

Thanks in advance!

[GenoMax]

I just tested this but I don't see the separator being added. In fact if I add separators manually they are appended to the end of the sequence they follow, like so

GTTTTGGAGGAAAAAAAATACAAGTAGCATTTACAACAGCTCTTTGCTCTTTAAATTTCT
TACCATTCAATAAAGTGATCCAGTCACTCACATTTGAACTGA------------------
-------------

[shenwei356]

-- between sequences should be there before using seqkit sort, which just changes the order rather than the content.

You can check it by searching sequences with -.

seqkit grep -s -r -p -- multifasta.fasta