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]  [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

   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

       cit2pmid(1), curl(1), download-ncbi-data(1),  download-ncbi-software(1),  download-pmc(1),
       download-pubmed(1),  edict(1),  efetch(1),  efilter(1),  einfo(1),  elink(1),  esearch(1),
       wget(1), xtract(1).