I am creating a script to automate the configuration of a CISCO WLC and would like to know if there is a way to disable the warnings prior to the script running and then re-enable at the end. This would eliminate having to answer the warning question.
For example if you send "auth-list ap-policy lsc enable" the return from the WLC is "Warning! Setting LSC mode does not apply to Mesh APs.Apply(y/n)?" I would like to turn off the warnings and just have the Controller except the command and move on.
Use expect to deal with this if you're having the script push the config out. Since you know the question is coming, it's easy.
expect -re "(y/n)?\r"
send "y\r"
ALternatively, you can just autor the config as a flat file and
'transfer download datatype config'
Related
I have a Bourne-Again shell script text executable named engine.bin that I want to install.
If I install the executable manually ./engine.bin I get a screen with the EULA I have to accept (by pushing space), then accept it by writing yes and then enter the installation path by typing /usr/local/engine.
Now I want to do the installation automatically through provisioning scripts without manual interaction. Is there a way to do this? I do not know if the installer accepts any parameters, unfortunately the thing is undocumented.
Based on the suggestion of bill-agee and jgr208 I wrote the following which is working for me:
#!/usr/bin/expect -f
set timeout -1
spawn /tmp/engine.bin
expect {
-gl "*Press SPACE or PAGE DOWN key to continue, U or PAGE UP key to scroll back*" { send -- " "; exp_continue }
-gl "*yes/no*"
}
send -- "yes\r"
expect -gl "*press ENTER to accept the default*"
send -- "/tmp/tce\r"
expect eof
If the executable allows you to spam input at it without waiting for each separate prompt to appear, you might be able to accomplish this with bash.
For example, this script will run program_that_takes_several_lines_of_input.py and send it four lines of input - three with text and one blank line:
#!/bin/bash -eux
./program_that_takes_several_lines_of_input.py <<EOD
first line
one enter keypress later
yet another line of input after the empty line above
EOD
If you need to stop and wait for each prompt to appear, the cram Python package may be a good fit for this scenario - I find it useful for tasks like this where you only need to send a few lines of input, but each line of input is different.
See:
https://bitheap.org/cram/
https://pypi.python.org/pypi/cram
Expect would also work, but I find that I reach working solutions a bit faster when using cram than with Expect.
pexpect is a great choice as well! See:
https://pexpect.readthedocs.org/en/stable/
Excuse me for the imprecisions in the question but I don't know how it is called what I'm trying.
In the CodeShip documentation is stated that I can pass to the SSH CodeShip debug build some commands using their command line application.
So, I should do something like cs setup-commands and I'm prompted with this:
rof#railsonfire_unique_string_sfivbe8bwucb9:~$ cs setup-commands
Your setup commands:
phpenv local 5.6
phpenv local 5.6
In Your setup commands: I put my commands but then, how can I "execute" them?
The second phpenv local 5.6 line is wrote by the command-line application. I think is something to signal the command were taken, but the behavior is ever the same: I remain "blocked" in the command setup-commands. After setting setup-commands I have to set also test-commands but all the things I write are taken by Your setup commands:.
How can I "submit and exit" the command setup-commands to then launch test-commands and set those other commands?
I think this is something related to Bash, but I don't know what it is...
And I don't know which is the correct terminology.
Can someone help me with this? So I will can also update my question to be more precise. Thank you.
Not sure about your case, but usually the input is considered finished, when th input file (in your case stdin) is closed.
Try to press Ctrl+D, it should end your input (and so signal the program hat you stopped typing for this session)
I need to run a shell script that should interact with couple of servers / routers in daily schedule. The script will simply login to the remote end, run a command. Up to here i hear that you are saying it is easy. The real problem here is that i need to analyze the output of the first command and based on the output i need to organize the second command. This is also doable, but the situation here is that i do not want to login and logout from the box for every command.
What i need is to login once, stay alive ,run the command take the output, analyze it and then run the second command later on logout and close connection.
Correct me if i am wrong but expect is not an option here. I want to ask for your suggestions.
Which language / module of this language i can use to complete this requirement.
Environment is not pure ssh, so i should have something general that can be used for both ssh/telnet.
Thanks in advance
Since you mentioned python, pexpect should do the job pretty well:
https://pexpect.readthedocs.org/en/latest/overview.html
(no alternate suggestions like vim --servername, or vim over ssh, or "just use ssh", or nfs, sshfs please. Also I prefer to avoid more elaborate incarnations of netcat like ncat)
I'd like to edit my text files that exist on another computer over a network, and know that it's not so straightforward using netcat. But I'm sure it's possible given a deeper understanding of netcat. I'd like to achieve that deeper understanding.
I know how to create my own REST service with netcat using pipes and fifo's. I also know you can expose your entire bash shell over netcat (yes it's dangerous), but it won't display the prompt. Yet it does display the output of a bash command back on the client.
What must be done to get a text editor (like vim, pico, nano, emacs) to work over a network for both reading and writing?
From vim doc:
Editing files over a network *new-network-files*
----------------------------
Files starting with scp://, rcp://, ftp:// and http:// are recognized as
remote files. An attempt is made to access these files with the indicated
method. For http:// only reading is possible, for the others writing is also
supported. Uses the netrw.vim script as a standard "plugin". |netrw|
Another tutorial: http://vim.wikia.com/wiki/Edit_remote_files_locally_via_SCP/RCP/FTP
# open a remote file
vim scp://remote-computer:22//tmp/file.txt
# ... EDIT ...
# write it back (run in vim)
:Nwrite
I am trying to automate the install of a few setup files (.exe). I managed to get one working without any issue but am having difficulty with the second.
I created response files by using the following in command prompt:
MyProgram.exe -r
This generated a "setup.exe" file in C:\Windows as I would expect it to. Here is an example of what the file looks like in notepad:
[{PRODUCT_GUID}-DlgOrder]
Dlg0={PRODUCT_GUID}-SdWelcome-0
Count=5
Dlg1={PRODUCT_GUID}-SdLicense-0
Dlg2={PRODUCT_GUID}-SdAskDestPath-0
Dlg3={PRODUCT_GUID}-SdSelectFolder-0
Dlg4={PRODUCT_GUID}-SdStartCopy-0
[{PRODUCT_GUID}-SdWelcome-0]
Result=1
[{PRODUCT_GUID}-SdLicense-0]
Result=1
[{PRODUCT_GUID}-SdAskDestPath-0]
szDir=C:\Example\
Result=1
[{PRODUCT_GUID}-SdSelectFolder-0]
szFolder=Example\Folder
Result=1
[{PRODUCT_GUID}-SdStartCopy-0]
Result=1
I run the install with the setup.iss (response file) using the command:
program.exe /S /f1.\setup.iss
All response files seem to work except for one. The program opens a dialog asking me to select from a pair of radio buttons to select what language manual I want it to install. I want it to default to hit the "Next" button but there's obviously nothing recorded in the .iss file to do so.
What do I have to manually add to the .iss file in order to complete this prompt?
Why doesn't my recording put this in?
Additional information:
If I manually hit "Next" at this step, the program completes install as expected.
The program successfully installs when I install everything manually.
It sounds like this installation includes a custom dialog that doesn't properly handle either MODE SILENTMODE or RECORDMODE. For silent installations to work properly, it needs to call SilentWriteData and SilentReadData when appropriate.
If you are the author of this installation (whether original or inherited), you should handle this case. If you are not the author and are trying to install this installation silently, you should contact the vendor, or (as Glytzhkof suggests) ask on a more relevant site for workarounds.
I think the response file will only contain the actual answers that were input during the original response file creation session. Did this missing dialog show up during the original setup run? Reboot dialogs and rare to display dialogs are often missing from the response file.
It could also be that the missing dialog is a custom made dialog and not a built-in Installshield dialog. I suppose this could mean it doesn't behave in the standard way.
How complex is this setup? How many systems are you deploying to? To reliably deploy files like these it is common to use "setup capture" and repackage as MSI files - so called application repackaging.
Depending on how many setups you have, how important they are and how many machines they need to reliably work on it might be worth capturing them. This is a highly complex task at times, but yield more reliable deployment once done right. Personally I find the biggest benefit of repackaging is the availability of a reliable uninstall - provided you have cleaned up the capture properly. Otherwise you have to create response files for the uninstall too. Very clunky and error prone - even when done well.
You might want to take this discussion to serverfault.com - the system administrator equivalent to stackoverflow.com. You can also have a look here: http://unattended.sourceforge.net/installers.php