Sponsored Content
Top Forums Shell Programming and Scripting How to run the following expect commands in a loop Post 302551798 by tkhanna82 on Wednesday 31st of August 2011 04:53:33 PM
Old 08-31-2011
How to run the following expect commands in a loop

#!/usr/bin/expect
spawn telnet 1.1.1.1
expect login*
send “admin\r”
expect Password*
send “abcdef123\r”
expect “Router#”
send “exit\r”


I want the above code to run in a loop such that script keeps doing a telnet to the device. Please suggest




Tarun
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Run a shell script from one host which connext to remote host and run the commands

I want to write a script which would run from one host say A and connect to other remote host B and then run rest of commands in that host. I tried connecting from A host to B with SSH but after connecting to host B it just getting me inside Host B command prompt. Rest of the script is not running... (6 Replies)
Discussion started by: SN2009
6 Replies

2. Shell Programming and Scripting

Expect, SSH and multiple passed commands

Hey Everyone, I have found this script online that has almost all the features I am looking for. However, I do not know enough expect to debug the problem. http://linuxgazette.net/100/misc/tips/sshtool.expect.txt First, it Traps out after it collects the user's password. I do not know... (0 Replies)
Discussion started by: patchsmyle
0 Replies

3. Shell Programming and Scripting

Expect: run a command first before sending

Hello Expect experts, Is it possible with Expect to run a command first when an expected phrase is outputted by a spawned program? Before sending an answer to the spawned program that is... Thanks a lot. (2 Replies)
Discussion started by: Tr00tY
2 Replies

4. Shell Programming and Scripting

telnet commands using expect

Hi All, I am trying to write a expect script to telnet and run a command on a remote host.The command i want to send contains a text value is contained in file.txt in the linux box from where i am running the expect script.I want to pass the contains of file.txt into a variable and call the... (1 Reply)
Discussion started by: pistachio
1 Replies

5. Shell Programming and Scripting

Expect - Comparison of expect value and loop selection

Hello All, I am trying to automate an installation process using expect and sh script. My problem is that during the installation process the expected value can change according to the situation. For Example if this is a first time installation then at step 3 I'll get "Do you want to accept... (0 Replies)
Discussion started by: alokrm
0 Replies

6. Shell Programming and Scripting

Trouble passing commands with expect

Hello All, I hope someone could help me with this. I'm creating a shell script to run a process. The trouble is, part of the process has to be ran as a different user. I can 'su' to the user ok, but I'm having trouble passing a 'cd' command as well as some variables I set earlier in the... (1 Reply)
Discussion started by: bbbngowc
1 Replies

7. Shell Programming and Scripting

How to run the following expect commands in a loop?

spawn fbat expect ">>" send "log fbatPW80_OR8sim1 \r" expect ">>" send "load map.map \r" expect ">>" send "load fbatPW80_OR8sim1.ped \r" expect ">>" send "fbat -v1 \r" expect ">>" send "log off \r" expect ">>" I need the above code to run in a loop such that script keeps doing a... (1 Reply)
Discussion started by: zoeli
1 Replies

8. Shell Programming and Scripting

How to execute commands on remote server using expect script?

I need to copy python script file to around 100 servers using expect script. 1. Copy script to my user home first(/home/myhome) on each remote server 2. change permissions on copied file to 766. 3. sudo to appuser1 account on remote server. copy script file from my user home to /usr/bin/... (1 Reply)
Discussion started by: kchinnam
1 Replies

9. Shell Programming and Scripting

Loop to run commands - after the previous instance completed

Hi All, I am trying to call a shell script in a loop. I want my first instance to complete, and then the 2nd instance of the command to start - and so on. eg. I am running this script 30 times. The wrapper script needs business date, from_time,to_time & server_name as inputs. script_name... (2 Replies)
Discussion started by: neil.k
2 Replies

10. Shell Programming and Scripting

Expect script not passing password / commands ??

Newbie here. My goal is to have the expect script log into the Ubuntu 18.04 server and run two commands (lsb_release -a and ip addr) and eventually pipe the output/results to a file. For now, I would be happy to get this one command or two to run successfully. How to fix this? #!/usr/bin/expect ... (3 Replies)
Discussion started by: jacob600
3 Replies
RUNSCRIPT(1)						      General Commands Manual						      RUNSCRIPT(1)

NAME
runscript - script interpreter for minicom SYNOPSIS
runscript scriptname [logfile [homedir]] DESCRIPTION
runscript is a simple script interpreter that can be called from within the minicom communications program to automate tasks like logging in to a unix system or your favorite bbs. INVOCATION
The program expects a script name and optionally a filename and the user's home directory as arguments, and it expects that it's input and output are connected to the "remote end", the system you are connecting to. All messages from runscript meant for the local screen are directed to the stderr output. All this is automatically taken care of if you run it from minicom. The logfile and home directory parame- ters are only used to tell the log command the name of the logfile and where to write it. If the homedir is omitted, runscript uses the directory found in the $HOME environment variable. If also the logfile name is omitted, the log commands are ignored. KEYWORDS
Runscript recognizes the following commands: expect send goto gosub return ! exit print set inc dec if timeout verbose sleep break call log OVERVIEW OF KEYWORDS
send <string> <string> is sent to the modem. It is followed by a ' '. <string> can be: - regular text, e.g. 'send hello' - text enclosed in quotes, e.g. 'send "hello world"' Within <string> the following sequences are recognized: - newline - carriage return a - bell  - backspace c - don't send the default ' '. f - formfeed ^ - the ^ character o - send character o (o is an octal number) Control characters can be used in the string with the ^ prefix (^A to ^Z, ^[, ^ ^], ^^ and ^_). If you need to send the ^ character, you must prefix it with the escape character. Also $(environment_variable) can be used, for example $(TERM). Minicom passes three special environment variables: $(LOGIN), which is the username, $(PASS), which is the password, as defined in the proper entry of the dialing directory, and $(TERMLIN) which is the number of actual terminal lines on your screen (that is, the statusline excluded). print <string> Prints <string> to the local screen. Default followed by ' '. See the description of 'send' above. label: Declares a label (with the name 'label') to use with goto or gosub. goto <label> Jump to another place in the program. gosub <label> Jumps to another place in the program. When the statement 'return' is encountered, control returns to the statement after the gosub. Gosub's can be nested. return Return from a gosub. ! <command> Runs a shell for you in which 'command' is executed. On return, the variable '$?' is set to the exit status of this command, so you can subsequently test it using 'if'. exit [value] Exit from "runscript" with an optional exit status. (default 1) set <variable> <value> Sets the value of <variable> (which is a single letter a-z) to the value <value>. If <variable> does not exist, it will be created. <value> can be a integer value or another variable. inc <variable> Increments the value of <variable> by one. dec <variable> Decrements the value of <variable> by one. if <value> <operator> <value> <statement> Conditional execution of <statement>. <operator> can be <, >, != or =. Eg, 'if a > 3 goto exitlabel'. timeout <value> Sets the global timeout. By default, 'runscript' will exit after 120 seconds. This can be changed with this command. Warning: this command acts differently within an 'expect' statement, but more about that later. verbose <on|off> By default, this is 'on'. That means that anything that is being read from the modem by 'runscript', gets echoed to the screen. This is so that you can see what 'runscript' is doing. sleep <value> Suspend execution for <value> seconds. expect expect { pattern [statement] pattern [statement] [timeout <value> [statement] ] .... } The most important command of all. Expect keeps reading from the input until it reads a pattern that matches one of the specified ones. If expect encounters an optional statement after that pattern, it will execute it. Otherwise the default is to just break out of the expect. 'pattern' is a string, just as in 'send' (see above). Normally, expect will timeout in 60 seconds and just exit, but this can be changed with the timeout command. break Break out of an 'expect' statement. This is normally only useful as argument to 'timeout' within an expect, because the default action of timeout is to exit immediately. call <scriptname> Transfers control to another scriptfile. When that scriptfile finishes without errors, the original script will continue. log <text> Write text to the logfile. NOTES
If you want to make your script to exit minicom (for example when you use minicom to dial up your ISP, and then start a ppp or slip session from a script), try the command "! killall -9 minicom" as the last script command. The -9 option should prevent minicom from hanging up the line and resetting the modem before exiting. Well, I don't think this is enough information to make you an experienced 'programmer' in 'runscript', but together with the examples it shouldn't be too hard to write some useful script files. Things will be easier if you have experience with BASIC. The minicom source code comes together with two example scripts, scriptdemo and unixlogin. Especially the last one is a good base to build on for your own scripts. SEE ALSO
minicom(1) BUGS
Runscript should be built in to minicom. AUTHOR
Miquel van Smoorenburg, <miquels@drinkel.ow.org> Jukka Lahtinen, <walker@netsonic.fi> User's Manual $Date: 2007-10-07 18:13:51 $ RUNSCRIPT(1)
All times are GMT -4. The time now is 04:57 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy