NAME

       nquire - query NCBI Entrez Utilities, other parameter-based web services, or FTP

SYNOPSIS

       nquire  [-help] [-ftp host dir [file]] [-url URL] [-get [URL]] [-len URL] [-lst host dir] [-dir host dir]
       [-eutils name]                       [-dwn host dir [file]]                        [-asp host dir [file]]
       [-ncbi|-eutils|-pubchem|-pugrest|-pugview|-datasets]   [component   ...]   [-tag value  ...]  [-examples]
       [-version]

DESCRIPTION

       nquire performs raw HTTP(S) queries against web services such as NCBI E-Utilities that take GET  or  POST
       parameters,  or  downloads  or listings from FTP and Aspera servers.  (Aspera support requires installing
       proprietary client software.)

OPTIONS

   Documentation
       -help  Print usage information, complete with a few examples, some additionally illustrating the  use  of
              xtract(1).

   Query Commands
       -ftp host dir [file]
              Use  FTP  instead  of  HTTP.  The shell implementation accepts a filename on the command line only
              when invoked from a (pseudo)terminal, and otherwise reads filenames from standard input.

       -url URL
              Base URL for external search.

       -get [URL]
              Use HTTP(S) GET instead of POST.

       -len URL
              Content length of HTTP file.

       -lst host dir
              Lists contents of FTP site.

       -dir host dir
              FTP listing with file sizes.

   File Downloads
       -dwn host dir [file]
              Like -ftp, but saves contents to correspondingly named files in the current directory.

       -asp host dir [file]
              Like -dwn, but uses Aspera's proprietary client if installed.

   -url Shortcuts
       -ncbi     https://www.ncbi.nlm.nih.gov

       -eutils   https://eutils.ncbi.nlm.nih.gov/entrez/eutils

       -pubchem  https://pubchem.ncbi.nlm.nih.gov

       -pugrest  https://pubchem.ncbi.nlm.nih.gov/rest/pug

       -pugview  https://pubchem.ncbi.nlm.nih.gov/rest/pug_view

       -datasets https://api.ncbi.nlm.nih.gov/datasets/v2alpha

   URL Additions
       component
              Add /component to the base URL.  (Must precede any tag/value pairs.)

       -tag value ...
              Add &tag=value,... to the base URL.  (Must follow any simple components.)

   Miscellaneous
       -examples
              Examples of advanced queries.

       -version
              Print version number.

SEE ALSO

       archive-nihocc(1),     archive-nlmnlp(1),     archive-nmcds(1),     archive-pids(1),      archive-pmc(1),
       archive-pubmed(1),       archive-taxonomy(1),       cit2pmid(1),      curl(1),      download-flatfile(1),
       download-ncbi-data(1),  download-ncbi-software(1),  download-pmc(1),   download-pubmed(1),   ecollect(1),
       edict(1),   efetch(1),   efilter(1),   einfo(1),   elink(1),   epost(1),   esearch(1),  refseq-nm-cds(1),
       skip-if-file-exists(1), wget(1), xtract(1).

NCBI                                               2025-05-26                                          NQUIRE(1)