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Full Discussion: how to use telnet in script
Top Forums Shell Programming and Scripting how to use telnet in script Post 73563 by vgersh99 on Thursday 2nd of June 2005 03:56:11 PM
Old 06-02-2005
Quote:
Originally Posted by reborg
You cannot use a here document with telnet.

If this task really must be done with telnet it could best be done with expect, otherwise use a login method which does not need interactive logins such as rsh/rexec or preferably ssh.
I second the above!
Here's the "poor-man's" inline telnet which might not be bullet-proof for all the cases:
Code:
    (
    sleep 3
    print user
    sleep 1
    print password
    sleep 2
    print "ls ~"
    sleep 1
    print "exit"
    sleep 3
    ) | telnet hostname

 

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LEARN ABOUT DEBIAN

sleep

SLEEP(3)						     Linux Programmer's Manual							  SLEEP(3)

NAME

       sleep - sleep for the specified number of seconds

SYNOPSIS

       #include <unistd.h>

       unsigned int sleep(unsigned int seconds);

DESCRIPTION

       sleep() makes the calling thread sleep until seconds seconds have elapsed or a signal arrives which is not ignored.

RETURN VALUE

       Zero if the requested time has elapsed, or the number of seconds left to sleep, if the call was interrupted by a signal handler.

CONFORMING TO

       POSIX.1-2001.

BUGS

       sleep() may be implemented using SIGALRM; mixing calls to alarm(2) and sleep() is a bad idea.

       Using longjmp(3) from a signal handler or modifying the handling of SIGALRM while sleeping will cause undefined results.

SEE ALSO

       alarm(2), nanosleep(2), signal(2), signal(7)

COLOPHON

       This  page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    2010-02-03								  SLEEP(3)
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