Scroll to navigation

ESEARCH(1) NCBI Entrez Direct User's Manual ESEARCH(1)

NAME

esearch - search an NCBI Entrez database

SYNOPSIS

esearch (edirect -search) [-help] -db name -q[uery] str [-sort field] [-days N] [-datetype field] [-mindate date] [-maxdate  date] [-field field] [-pairs  field] [-spell] [-label name]

DESCRIPTION

esearch searches an NCBI Entrez database for a given query.

OPTIONS

Query Specification

-db name
Entrez database name.
-q[uery] str
Query string.

Document Order

-sort field
Sort results by the given field.

Date Constraint

-days N
Return only results from the past N days.
-datetype field
Which date field (in abbreviated form) to consider.
-mindate date
Start of date range.
-maxdate date
End of date range.

Limit by Field

-field field
Query words individually in field.
-pairs field
Query overlapping word pairs.

Spell Check

-spell
Correct misspellings in query.

Miscellaneous Arguments

-help
Print usage information.
-label name
Alias for query step.

SEE ALSO

edirect(1), efetch(1), eproxy(1), espell(1).
2019-02-06 NCBI