.TH EDIRECT 1 2017-01-24 NCBI "NCBI Entrez Direct User's Manual" .SH NAME edirect \- access NCBI Entrez from the command line .SH SYNOPSIS .B edirect\ \-version \fBesearch\fP (\fBedirect\ \-search\fP) \fIoptions\fP \fBelink\fP (\fBedirect\ \-link\fP) \fIoptions\fP \fBefilter\fP (\fBedirect\ \-filter\fP) \fIoptions\fP \fBesummary\fP (\fBedirect\ \-summary\fP) \fIoptions\fP \fBefetch\fP (\fBedirect\ \-fetch\fP) \fIoptions\fP \fBeinfo\fP (\fBedirect\ \-info\fP) \fIoptions\fP \fBepost\fP (\fBedirect\ \-post\fP) \fIoptions\fP \fBespell\fP (\fBedirect\ \-spell\fP) \fIoptions\fP \fBecitmatch\fP (\fBedirect\ \-citmatch\fP) \fIoptions\fP \fBeproxy\fP (\fBedirect\ \-proxy\fP) \fIoptions\fP \fBecontact\fP (\fBedirect\ \-contact\fP) \fIoptions\fP \fBenotify\fP (\fBedirect\ \-notify\fP) \fIoptions\fP \fBeaddress\fP (\fBedirect\ \-address\fP) \fIoptions\fP .SH DESCRIPTION \fBedirect\fP (Entrez Direct) is a command\-line utility for consulting NCBI's set of interconnected databases (publication, sequence, structure, gene, variation, expression, etc.) in a variety of fashions, each of which is documented individually in a dedicated man page. .SH COMMON OPTIONS Most subcommands accept the following options, in addition to command\-specific options. .TP \fB\-help\fP Print usage information. .TP \fB\-email\fP\ \fIaddress\fP Send the given e\-mail address to have someone to notify in case a runaway script causes problems with an NCBI Entrez server. .TP \fB\-tool\fP\ \fIname Send the given client name. .TP \fB\-http\fP[\fBs\fP]\ \fBget\fP Force the use of \fBGET\fP rather than \fBPOST\fP HTTPS requests. .TP \fB-alias\fP\ \fIfilename\fP Specify a file of shortcut keywords and query strings or URL sections. .TP \fB\-silent\fP Suppress connection failure retry messages. .TP \fB\-verbose\fP Display the \fBENTREZ_DIRECT\fP XML field values at each step. .TP \fB\-debug\fP Print the internal URL query and XML results of each step. .TP \fB\-base\fP\ \fIURL\fP Specify a particular server for quality assurance testing. .SH SEE ALSO .BR eaddress (1), .BR ecitmatch (1), .BR econtact (1), .BR efetch (1), .BR efilter (1), .BR einfo (1), .BR elink (1), .BR enotify (1), .BR entrez\-phrase\-search (1), .BR epost (1), .BR eproxy (1), .BR esearch (1), .BR espell (1), .BR esummary (1), .BR nquire (1), .BR xtract (1).