Hi Jayd512,
sorry for inconvience, my aim was not to give clue to somebody of how to crack passwords.
I just wondered about using expect scripts. Unfortunatelly you can easy abuse those information for cracking passwords. I really needed those information for "password cracking"
(but all in therms of legal - I needet to automate process of password guessing on server in our company because of old admin set passwords and forgot which password on which server .
Although thanks for warning I will try not to post similar posts.
Thank you very much Vryali, you post helped me to move big step forward. You can be calm I did not abuse those information, just needed them all in therms of legal (a lot of them I will be using to something completly different (automating interactive commands), but the ssh password prompting gives great oportunity to ask lot of expect examples)
I have some more questions (If you dont mind)
1. Seems like in example that You have posted "continue" and "exp_ontinue" performs the same action (they both works as a "goto" to "expect" statement from which was invoked (Correct me if I am wrong))
- also read in man pages tat "continue" acts like any other classic "continue" statement which is used eg. in awk also, read that it sets TCL_CONTINUE what does this mean practically ?
- so what is difference between continue and exp_continue ?
2. Is adding "-re" to "expect" necessary, I read somewhere that "-re" enables regular expression evaluating.
3. Is possible to supress any output of TCL instead of lines that I want explicitly printed on screen eg. with puts function ?
- I used redirection in spawning of ssh ("2>&1>/dev/null") but expect also outputs some text, here is some discussion probably regarding this question but is unclear to me https://www.unix.com/shell-programmin...sword-arg.html
Following questions may be related:
4. Please look at following post https://www.unix.com/shell-programmin...cant-stop.html
In 1st post user "radioactive9" "expect" the following string: "~]$ " two times. He complains about infinite looping which seems logic to me (because of string "~]$ " matched above in code and '{send "passwd\r" ; exp_continue}' is invoked again ). How does frappa's suggested 'send "exit\r\r' help in this situation ?
- In another words if i expect two same strings, the first one (code above) is always matched ?
- Also in 4th post there are two "expect" and in both is the "default" branch, which "default" branch will be called ?
5. Previous questions points me to another question; how to face situation when I need to "expect" same string but in different circumstances ? The previous link (1st post) explains well what I mean. My guess is to use another "expect" in particular superior "expect" (One problem I see is how to jump to most superior code), one code for thousand examples.
Is this correctapproach ?
6. You have said that expect uses "send" action as it sees matching pattern from "expect", so how to overcome situation where pattern matches but input is not desired (end expect after all "send" some string) ? Is this really treaten as error ? (expect will "send" another string after input will be requested - correct me if I am wrong)
- eg. can be some kind of sleep issued ?
- are there used any buffers ?
7. I found somewhere on internet "set timeout -1", "match_max 100000", or using "send --" or even "send -s" instead of classic "send". Also I found that "send_user" could be used to send any output to user, dont ou know some site where those functions are explained cause eg. "match_max" confuses me what does buffer size stands for ?
hai all,
i have an tcl script in which i have been reading the DUT Command prompt of an cisco switch as
DUT Command Prompt : cisco*
and running the test case of stp now the problem is if i have given any blank space in between the cisco or at the startup then the Expect is not identifying the... (0 Replies)
Does anyone know of an expect/tcl forum that is as helpful as this one is for shell scripting?
Or if anyone has any expect knowledge, can you please provide some guidance on how to write to a local error log based on output from a ssh session?
I have something like this:
foreach host... (2 Replies)
In the following "for" loop I assume the the script will expect "anyway", "first" NOT in any paticular order and send "yes" when there found, breaking out of the loop when "$prompt" is found. The way it is working is like 3 individual expect lines, and they MUST be in cronological order. ANY help... (0 Replies)
Can someone identify what is the problem here?.
no children
while executing
"exp_wait -nowait -i -1"
(procedure "logOptions" line 45)
invoked from within
"logOptions"
(procedure "doExecute" line 98)
invoked from within
"doExecute"
(procedure "main" line 32)
... (7 Replies)
I'm having this problem with a very simple tcl expect script that is running on Solaris 5.3 with TCL version 8.4.7 and expect version 5.0.
below is the simplified version of the code snippet, which I think has everything to illustrate the problem, the full version is at the very bottom in... (0 Replies)
hi, I am new in Expect.
I have a question about expect timeout.
suppose I have a structure of
expect { ".."{
send"............"}
timeout{
...............
}
}
The silly question is if I reach timeout, how can I store the error message showing on the screen to... (2 Replies)
How can I pass password in SSH command without using expect in a shell program.
I don't have expect installed on my Solaris server.
#!/bin/bash
ssh user@hotname (how to supply pass in script?:wall:)
Experts please help its very urgent.
Shrawan Kumar Sahu (4 Replies)
Dear All,
I have a requirement where I have to SFTP or SCP a file in a batch script. Unfortunately, the destination server setup is such that it doesn't allow for shell command line login. So, I am not able to set up SSH keys. My source server is having issues with Expect. So, unable to use... (5 Replies)
Morning and Happy New Year to all.
I am in a situation where I need to connect to a list of devices that are using either telnet or ssh.
I want to try to telnet, if I receive any of the following I want to attempt ssh :
"Connection refused"
"Connection timed out"
timeout expiration
... (3 Replies)