Telnet after ssh - The Tcl programming language

1b1e4 Telnet after ssh - The Tcl programming language

Training, Open Source computer languages

Perl • PHP • Python • MySQL • Apache / Tomcat • Tcl • Ruby • Java • C and C++ • Linux • CSS

Telnet after ssh

Posted by kumz_alca (kumz_alca), 5 February 2008

Hi,
I am a newbie to expect, so please bear with me. I am trying to spawn a telnet session within an ssh session and have not been successful. I am pasting the code below. Can you please tell me what is the problem with this code? It hangs after the spawning ssh to the 1st shell.

#!/opt/exp/bin/expect
log_user 0
set timeout 3
set id [exec xterm -e ssh@$argv]
expect -i $id -re "Password: "
exp_send -i $id "abc"
exp_send -i $id "telnet host2"

Please help.

Thanks

Posted by admin (Graham Ellis), 6 February 2008

You should use spawn to spawn your new preocess that's going to be controlled by expect.

This page is a thread posted to the opentalk forum at www.opentalk.org.uk and archived here for reference. To jump to the archive index please follow this link.

You can Add a comment or ranking to this page

Public Training Courses

Running regularly at our UK training Centre.
[Schedule] - [About] - [Book]

Other Forum Posts

expect Log file

Please use our new forum!

Getitbigger.com - Increase your penis size by 4 in

Silver is too cheap compared to gold.....

http://www.research-papers-production.com/ - essay

sherwooddungeon.massmmorpg.com - sherwood dungeon

code coverage tool for tcl / tk

Expect hangs!!!

Mysql using TCL

Windows COM port communication with Expect

crc16 calculation

grep for lines between words in a file

Reading arrays using EXPECT

Executing a Tcl script from within a Tcl dialog

Need help in Expectscript in reading array or file

Embedding Tcl in C

problem with if structure

store timestamp result in a variable

Calling proc from command line

parsing output buffer

How to compare a string and a numeral

How to replace a string with blank spaces in a fil

finding the timestamp

Ping Result Storage

Simple question (sorry)

TCL programs via cronjob ?

connection timedout

checking an attribute

text area and adding a scrollbar problem

check button question

Splitting a string

TCL & C linker problem

spawn telnet is giving problem in windows but it i

Expect - Installation Woes

Accessing an array within a class using itcl

Newbie question, Expect

I got stuck while logon via expect!

Problem with Expect in shell script

How to get widget's name?

couldn't compile regular expression pattern: quant

how to expect two patterns and perform the same ac

creating variables on the fly

Forcing a command to be completed

loading oratcl from starkit

handling multiple processes

Using Expect to get cisco running configs

unintended pattern matching

expect, automate ssh login

echoing commands while in interact

new telnet session

Sending serial data

Monitoring a process

How to chomp in tcl?

where did the output go?

How to load a DLL built by MS VC++ in tcl file?

use of tcl in VxWorks platform

logging certain portions of output

Writing capture output to a file

Sending commands to particular process

simultaneous expect problem

Expect and PATH

clean up used processes

tcl string works

TCL question - accessing same-directory files

Need help in looping expect

Telnet after ssh

Expect question - send commands to an xterm shell

Automating an SSH connection Expect-Style

TK error - button command within a procedure

challenge response with expect

Array elements inside proc

Passing array to a proc

Timing output capture

Temporary toplevel without caption bar

Waiting for the result when running expect script

Outputting in colors

TCL - Comparison between numerals

Compilation issuse .... Any ptrs ??

invalid command name else error

create dir,file in expect

shell env variable in expect

textvariables for entries can't be global?

add leading zeros to a variable?

Reg: Expect error

Unattended Install-root password

Integrating Tcl/Tk with C/C++

wat may be the possible cause ?

Remote procedure call

how to start the first program

integrate Tcl/Tk - C++

Tcl-Dp package installation problem !!!

program architecture

to associate Tk entry value with spawn

Expect with Cron failed

Is Tcl Recursive?

Serial port 'pretends' to work!

How to spawn a session in new window using expectk

can't read "expect_out(buffer)": no such variable

ssh using expect

How to ssh and execute a particular command

Extracting list args passed to a procedure

redirect the output of a tcl command to a variable

extension of TCL with C

How to call a proc and not wait for it's return

Count files of particular type in a folder

problem with fcopy

expect not working on Linux

tcl proc to string match data to the stdout data

Pattern seraching/matching

Do you offer any course in India?

reading particular lines of a file

lreplace add extra {} in my result

package needed for keylget

Expect: Parsing/evaluating lines of numbers

Using Tcltest for Tk GUI

searching the exact term

Expect / telnet skips characters

Issues installing 8.4 with pthread enabled

expect_out(buffer) not giving output to local m/c

problems with supporting arrow key in tclsh

Openning a file with current date & time appended

Help! TCL automation issue

itcl for commercial use

How can I detect an open com port?

expect script writing partial output to the file

spawn and  foreach in expect

Probelm about link script in VC++

Problems with programming simple timer in Tcl

Tcl implemented in hardware?

switch and variables - no comparison/matching?

TCL in CNC world

Serial Port: is my code wrong or something else?

Re: expect script aborting in the middle.

Serial Port RS232

telnet, expect and the web

Respond to remote events

Detecting end of spawn output

script cannot run after psftp from Windows XP

Output console text to printer

source + spawn + proc + expect = got me

Interfacing the WEB server with TCL

Calling a file during telnet expect

who has a good tools for tcl?

Difference between a 'binary string" and a "string

Processing output after Spawning in Expect

Bizzare serial port output

Difference in content of two files

External variables

installing expect TCl on solaris 5.8

Using expect with tcl 8.3.5.0-2

Unintelligible behaviour of tk_dialog function

Extracting bit-fields from binary

save output into file

list directories

executable tcl script's creating problem

Perl code can be embedded in Tcl?

How to installing the BLT extension

Removing control characters using tcl

Doubt in this IF-ELSE code

mounting/unmounting scsi

String Comparison

Issues about running tcl scripts as a testsuite

Passing arrays in and out of procedures

Customize font in tk_messageBox dialog

errors while embedding tcl in c

reading a hex number and freq

regexp for multi line matching

expect log file

asking for expect which used to interact program?

starting a background process

How to use expect in local machine

command for getting current time with milliseconds

Extracting numerals from expect_out(buffer)

Unable to capture the entire result in expect_out(

Array names - variable substitution

Regular expression

printing current line number

Problem with sending password

Is it possible to define "proc" outside the file?

how to split string w/variable # of spaces

Taking Control from Expect and returning control?

what does prompt "(%|#|\\$|%]) $" stands for

defining global variable for Proc

Expect - cannot send F11 keypress to Linux Firefox

How to communicate with the device using Serial po

expect_out(buffer) Size

Please try to turn C structures into Tcl objects.

Expect - Simultaneous pattern matching

how to send the correct escape character in expect

Puts output is being shifted to the right ...

Expect - how to spawn a file read operation

How to clear out the expect_out(buffer)

trouble with expecting and regular expressions

String functions in TCL

Expect script terminating too early

Unable to interact from within a proc

Assigning Expect script results to a variable???

run: expect from bash vs. shell-utils from expect

Returning values from Expect scripts

How to run  cmd command??

Query w.r.t foreach

How to send ASCII control characters

Is it possible to use .h files in tcl?

Calling expect from bash (or other shell)

Exiting from interact (Expect)

how to use & in Active tcl

File handling in TCL

freewrap and swig???

SSH using expect

formate command for date time and year.

output is being iterated ?

Silencing output from Tcl (silencing set?)

global array not available in loop??

Expect poops out when much output is sent

tcl sleep command

Problem using TclPro,a tcl debugger

expect(iing) via ssh to a down box

problem about TclDOM

cc not found on issuing  the  make command

Running Expect from Windows to Unix

how to let a GUI size depend on the monitor size

general help with tcl/expect

Display a value in an entry box

Automatic running tkcon with any script?

real_time_socket

TCL Socket with async

expect output overwrite

Tcl socket client

Expect: Reading i/p without waiting for [Enter]

How to detect a running application in Windows?

problem with exec statement

tcl, c/c++ interface problems

Compile time, time stamp under ActiveState'sTclApp

Using untrusted data

Socket prog. problem

Regexp - space or tab but not either!

Expect and parameters with $

Control Multiple Spawn telnetthrough single script

Output is not clear

staring an xetrm

Expect --> Bash --> Script

using multiple spwans for diff commands

Output to stdout: hidden in Komodo 3.0 ?

Question about 'clock format' command

Questions about expect

extracting a pattern

Expect_out(buffer)

Interprocess communication

serial input - with MS windows

spawning telnet from a procedure

Setting of global variables in expect

Intermittent failure with telnet

foreach loop does not use array order

tcl under expect

Using an array value as another array name

Doubt forming a variable in a foreach

How to continue a loop

xy78piwwdhlsearch with []

Expect nc smtp server

Help with waiting for expression

basic regexp problem

to send a "enter command" to the device through Ex

Is it necessary to logout or close spawn process

Char "^M" at end of each line in output file

Auto documented Tcl code - is it possible?

regarding expect_out(buffer)

Christmas is coming...

Trying to send a "-" minus sign through exp_send

How to redirect send result back to Linux box

calling procedures

Hot keys in tcl/tk GUI: enabling and disabling

COMMAND ENTRIES in menus: enabling and disabling

Socket programming in Tcl

Long expect command is appearing slowly

Handling asynchronous events in Tcl-C

Expect and Win2K Pro: install error

using list variables in commands

BWidget PanedWindow: changing size of frames

returning to a specific upper lever

capturing  standard error for a spawned process

Expect: system only has a finite number of ptys

extract a block of data

Displaying an xterm inside a Tk window

single script handling two processes in two diff p

To start two telnets

Killing process generated by separate thread

Expect_out(Buffer)

Regexp and expect

Help ASAP: is TCL mendatory for Expect?

Error when running C++ application with 'exec'

Handling long running processes in tk

Accessing return value from expect in unix shell

ccrypt with expect

Plain old TCL/Expect for Windows

using "interact" for inter process communication

FreeWrap: running wrapped Tcl program troubles

Calling expect through shell

file handling in tcl

Using expect between Unix and Windows

Window is always on top. How?

telnet and ssh login simaltaniously in expect

how to save result of command execution in file in

how to remove newline char from a string

Ftp over telnet over expect

Array of Arrays

Another telnet login failure with expect

telnet login using expect

spawn from a spawned process

Identify Expect disconnection

webpage -> script.php -> script.exp  time problem

Using Expect with cron

reading windows event logs

TCL proc size limits

calling  a Expect Procedure from Unix Shell Script

Problems with small numbers

Sending '*' as an argument

Tcl commands execution from two fifferent files

select multiple files

How function can returns floating-point values

info regarding timeout in case of expect

canvas text  - changing the font size

read data from file and display at tk entry

file conversion

expect -i speed issue

Garbage chars after remote login

combobox ..help

Multi-threaded TCL -- HELPPPP

problem with entry widget

Toplevel and ScrollBar

regexp and subvars

Processing hex input in Expect

Tk problem with binding menus

Dynamic switch statements

how do I install Tlc/tk?

Help with a cron job

gets of multi-key stroke (Alt-F5)

Expect monitoring

Passing array values as parameters

Not able to encrypt/read passwords

How TCL can be used over Vxworks

How can I kill process Id's from within "Expect"

Tk Geometry strings

lappend huge data

listbox question

Passing lists into procedures

egrep from a variabl

Expect Segfaulting

variable declaration only

Piping commands in TCLSH

how to store data in array

creating packages in Expect

Access violation with Tcl_EvalFIle

Long String to ASCII

Tcl Syntax checking.

How to use global variable in one namespace?

Managing errors in a different language

Closing clients?

ActiveTcl Pro studio - opinions sought

Using a List to create an entry in a regexp

Display history of Script file

From MySQL to a TCL list

how to express this event

How to specify which NIC to use?

Error ! child process exited abnormally.

telnet through expect functions

Accuracy Of Tcl Calculations

TCL8.4 Sockets not passing data until closed

Using command line args in TCL/Expect for Windows

Install and Use on W2K

Call back procedures and the TK Button Command

eof kills my script

Falt Tolerance for bad connections

integrating C and Tcl

Quiz: source [ locate myscript.tcl] doesn't work..

Foreach loop inside a foreach loop

Cywing and Tk/Wish

Pulling a list out of a proceedure

Using regexp to parse data

FTP app in Wish

pls...help me in this program

expects doesnt catch all output, large response

Listing files in Tcl

Arithmetic computation in Tcl

Tk/Wish Script problem

Web Front - TCL/Expect Telnet Backend

Expect: capture unix cmd into var over ssh

simultenious telnet sessions with Expect

Testing SNMPv3 using Tcl

Small maths errors in Tcl

how to set text widget read-only regions ?

how to update tcl/tk in my program?

freezing output

search each word in each line in the file

newbie needs 'expect' help

suspend then background process run from expect

binding rectangles with different procedures

how to use scrollbars for canvas

binding rectangles in tk-canvas

expect reading in a list????

Expect and SSH in Cygwin

CGI server side Tcl script

Problem with capturing output from mkpasswd

serial port input control

Reading keyboard without waiting for [return]

Decimal to Hexadecimal conversion

Tcl loops and conditionals

Generating checksum - processing at byte level

How To refresh a canvas

can anybody help me with a chess game program

There are some defunct processes after close socke

Expect for Windows

where is output

How to import GIF file format ?

how to arm a timer

tcl : installing tcl extention

Almost same Problem

put a toplevel always on top

help with redirectioning output

Using both literals and variables in regexp

expect already running process

Help with exp_send command

interact command not working

what all do i need !!!

Timing diagram!!

Moved: gui for freebsd

Scanning an ASP web page

TCL Expect for Windows 95/ Windows 98

strange chars in expect log_file

Scan an image with TCL/TK code

use return value of a script in the expect script

what does set w .session$s_id mean?

Expect regexp output to another process

expect "multiple processes" "interact vth console"

need help about canvas and tags...

Problem with expect/spawn on Linux

Tcl/Tl initialization in Windows

Tcl functionality not working in Expect

Configuring TIX

Random Number generator

"open(slave pty): bad file number" error

Regular Expressions

Help: To install tcl and expect on Linux system

Rounding Down in Tcl

change the coordinates for a line

Tcl from C (error)

Expect - bad command trap

tk canvas question

how to avoid too much substitution

Using Tcl as a CGI lang with Apache and Cygwin

Button with changing bitmap

returning from interact

expect and multiple processes

Getting Network Layer packet details

expect on a socket

tcl read & puts & fconfigure problem

Scrollbar Colors

Substitute to "trap" command in linux for windows

Re: need some help

I need help with tcl

GUI problem....

How do I find my process ID?

Linking tcl and fortran

delayed evaluation for tk callbacks?

job control in expect with ssh

globally refresh text-related widgets?

How would you go about this?

keeping arrays and databases consistent?

accessing return value in expect

forcing variable (not command) substitution?

running multiple ssh instances asynchronously?

Save Procedure help

Looping down rather than up

Authentication using SSH

Expect for Microsoft O/S

I want see content of folder

Help wanted for using "Scan" command

about tcl procedure

Help for Pocket PC devices

Pattern matching

Specifying a log file name at the command prompt

Reading from the expect out buffer

Printing the line number.

???Loading own DLLs

Procedure with variable number of arguments

Expect script that gets into loop

expect:   spawn telnet from unix to windows

Wait time in a socket connection

Use of lindex in tcl

Using variables defined inside the procedure

Calling TCL 8.4 functions from TCL 8.0

Expect for TCL 8.4

TCL writing/reading to several files

logging users for 10 minutes

searching a string for .co.nz tcl/tk

exec date usage in expect

Checking whether process is running or not

EXpect:storing multiple names to print out

cursor text in tcl/expect

Backslash sequence inTcl

Expect/TCL:Cannot read the script file from GUI

Usage of send in expect/tcl

Reading from Expect out buffer

Calling a telnet application at the button click

Reading out from expect_out

invalid command name

Tcl/Tk Bubblesort

tixComboBox - changing elements

expect, expect_before and expect_after

Can I combine Expect and Tk

Network (TCP) client in Tcl

TCL Array Syntax problems

String match to \

regex matching with regexp

The 8 most common errors ....

Portability and reliability of Tcl

Tcl/Tk Automation

What is Expect / a sample

Splitting a file into pieces

upvar - do I need to use it?

Books on Tcl. Tcl/Tk and Expect

Tracing a variable in Tcl

Tk - specifying commands on a widget

Everything is a command in Tcl

Follow us on ...

32a

© WELL HOUSE CONSULTANTS LTD., 2013: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 899360 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

0