EFILTER(1)

✨ EFILTER — NAME ✨

okay bestie, say hi to efilter from the NCBI Entrez Direct User's Manual 💖

efilter — filter and/or sort NCBI Entrez search results 🦋

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🌸 SYNOPSIS 🌸

efilter [-help] [-query str] [-days N] [-datetype field] [-mindate date]
[-maxdate date] [-pub type] [-journal name] [-released when]
[-country name] [-feature type] [-location type] [-molecule type]
[-organism type] [-source type] [-division code] [-keyword purpose]
[-purpose why] [-status alive] [-type type] [-class class]

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🦋 DESCRIPTION 🦋

so basically, efilter filters and/or sorts the results you already got from a previous Entrez Direct search. it's the glow-up pass, the vibe check, the "okay but which ones do we actually keep" moment ✨

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👑 OPTIONS 👑

💖 Query Specification 💖

• -query str — only keep the results that match the query string you hand it. no match, no entry, periodt.

📅 Date Constraint 📅

• -days N — keep only the results from the past N days. fresh only 🍓
• -datetype field — which date field to look at, in its abbreviated form.
• -mindate date — the start of your date range.
• -maxdate date — the end of your date range.

📚 Publication Filters 📚

• -pub type — one of: abstract, clinical, english, free, historical, journal, medline, preprint, published, retracted, retraction, review, or structured.
• -journal name — like pnas, "j bacteriol", ...
• -released when — last_week, last_month, last_year, or prev_years.

🧬 Sequence Filters 🧬

• -country name — like usa:minnesota, united_kingdom, "pacific ocean", ...
• -feature type — like gene, mrna, cds, mat_peptide, ...
• -location type — mitochondrion, chloroplast, plasmid, or plastid.
• -molecule type — genomic, mrna, trna, rrna, or ncrna.
• -organism type — like animals, archaea, bacteria, eukaryotes, fungi, human, insects, mammals, plants, prokaryotes, protists, rodents, viruses, ...
• -source type — genbank, insd, pdb, pir, refseq, select, swissprot, or tpa.
• -division code — a three-letter GenBank division code, and the options are: bct, con, env, est, gss, htc, htg, inv, mam, pat, phg, pln, pri, rod, sts, syn, una, vrl, or vrt.
• -keyword purpose — 💅 that's it, that's the option.
• -purpose why — baseline or targeted.

🧬 Gene Filters 🧬

• -status alive — 🫶 yes bestie, that's the whole flag.
• -type type — coding or pseudo.

🎀 SNP Filters 🎀

• -class class — acceptor, donor, coding, frameshift, indel, intron, missense, nonsense, or synonymous.

🏗 Assembly Filters 🏗

• -status status — latest or replaced.

🍓 Miscellaneous Arguments 🍓

• -help — prints the usage info. your little helper 🧚

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🌈 SEE ALSO 🌈

the whole friend group, no cap: combine-uid-lists(1), difference-uid-lists(1), ecollect(1), elink(1), esearch(1), exclude-uid-lists(1), intersect-uid-lists(1), nquire(1), xfilter(1). 💜

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and that's the whole page bestie, slay 💅✨ this one came from NCBI, dated 2025-05-26 — take care of her, she's iconic 👑💖