NAME

       esearch - search an NCBI Entrez database

SYNOPSIS

       esearch   (edirect -search)   [-help]   -db name  -query 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.

       -query 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).

NCBI                                               2017-10-05                                         ESEARCH(1)