Hi Wei,

Something I have found myself wanting to do semi-regularly is rename each read in a FASTQ with a UUID. With the extract requirement that I would like the _1 file's reads to have a /1 suffix and the _2 a /2 suffix.

Do you think this is a feature that might be of interest/scope for seqkit? Or should I just create a small utility CLI tool to do this?

I guess it might fit in best with replace and it could be a special replacement symbol? Something like "{uid}"?