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Top Forums UNIX for Dummies Questions & Answers How to disconnect telnet prompt with port no in script. Post 302684529 by Corona688 on Thursday 9th of August 2012 05:10:39 PM
Old 08-09-2012
You can try redirecting /dev/null into it. telnet hostname port </dev/null

It should connect, try and read input from /dev/null, get EOF, and quit.

telnet may not really be the tool for the job here, however! It's an interactive program and very difficult to automate. netcat (nc) would be better suited if you can get it, it's designed to be noninteractive from the first.
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Regexp::Common::URI::telnet(3pm)			User Contributed Perl Documentation			  Regexp::Common::URI::telnet(3pm)

NAME
Regexp::Common::URI::telnet -- Returns a pattern for telnet URIs. SYNOPSIS
use Regexp::Common qw /URI/; while (<>) { /$RE{URI}{telnet}/ and print "Contains a telnet URI. "; } DESCRIPTION
$RE{URI}{telnet} Returns a pattern that matches telnet URIs, as defined by RFC 1738. Telnet URIs have the form: "telnet:" "//" [ user [ ":" password ] "@" ] host [ ":" port ] [ "/" ] Under "{-keep}", the following are returned: $1 The complete URI. $2 The scheme. $3 The username:password combo, or just the username if there is no password. $4 The username, if given. $5 The password, if given. $6 The host:port combo, or just the host if there's no port. $7 The host. $8 The port, if given. $9 The trailing slash, if any. REFERENCES
[RFC 1738] Berners-Lee, Tim, Masinter, L., McCahill, M.: Uniform Resource Locators (URL). December 1994. SEE ALSO
Regexp::Common::URI for other supported URIs. AUTHOR
Damian Conway (damian@conway.org) MAINTAINANCE
This package is maintained by Abigail (regexp-common@abigail.be). BUGS AND IRRITATIONS
Bound to be plenty. LICENSE and COPYRIGHT This software is Copyright (c) 2001 - 2009, Damian Conway and Abigail. This module is free software, and maybe used under any of the following licenses: 1) The Perl Artistic License. See the file COPYRIGHT.AL. 2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2. 3) The BSD Licence. See the file COPYRIGHT.BSD. 4) The MIT Licence. See the file COPYRIGHT.MIT. perl v5.14.2 2010-02-23 Regexp::Common::URI::telnet(3pm)
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