GT-SPLITFASTA(1)

💖 GT-SPLITFASTA 💖

okay bestie so this is a page from the GenomeTools Manual — it's GT-SPLITFASTA(1) if you wanna be formal about it, but we're gonna be casual 💅

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✨ NAME ✨

gt-splitfasta — Split the supplied fasta file.

(yeah that's it. that's the whole job. it takes your one big fasta and goes snip snip ✂️)

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🦋 SYNOPSIS 🦋

gt splitfasta [option ...] fastafile

so you're calling the splitfasta subcommand of gt, you're throwing some options at it if you feel like it, and then you hand it a fastafile — that's the thing getting chopped up 🎀

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🌸 DESCRIPTION 🌸

okay so here's the whole menu of flags, and I need you to know that every single one of them matters, no skipping 🫶

• -numfiles [value] — sets the number of target files you want out the other end (default: 0)
• -targetsize [value] — sets the target file size, and the unit is MB (default: 50)
• -splitdesc [string] — this one's the diva 💅 it puts every single fasta entry into its own separate file, and each file gets named by its description, all tucked into the directory you give it (default: undefined)
• -width [value] — sets the output width for FASTA sequence printing, and heads up, 0 disables formatting entirely (default: 0)
• -force [yes|no] — forces writing to the output file, no questions asked (default: no)
• -help — displays help and dips out
• -version — displays version information and dips out

lowkey obsessed with how -splitdesc just decides every entry is the main character and gives it its own file. iconic behavior, fr fr 👑

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🎀 REPORTING BUGS 🎀

found a bug? not the vibe. report it to https://github.com/genometools/genometools/issues and the maintainers will handle it ✨

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and that's the whole page bestie!! this was GenomeTools 1.6.6, dated 11/09/2025 — go forth and split those fastas, you absolute legend 🌈💖✨