I've been using linux for a few years (debian, fedora, ubuntu, and centos), and I've got an odd question which I don't know how to phrase it good enough for google to return any results for what I'm looking for.
You know how I can use ctrl+alt+F#(1-6) to switch between different usable terminals?
Well, how can I repurpose those TTYs to show output from a program (like ettercap or jnettop) without logging in and doing that? Obviously, I know this can be done, as it is done when running anaconda to install any RH based distro on a few of the terminals showing different things of what's going on in the background.
Ideally, what I want to do is do a shell script in rc3.d to startup automatically and display output to TTY2 and TTY3
Thank you.
repurposing a local console
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pschaff
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Re: repurposing a local console
Welcome to the CentOS fora. Please see the recommended reading for new users linked in my signature.
The initscripts system has changed to upstart for CentOS-6 so I don't think you can just drop a script in the directory. See [url=https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=32150&forum=55]this thread[/url] for background.
As far as writing to a tty, just redirect the output "command > /dev/tty8". You may want to use /dev/tty8 and /dev/tty9 as lower ones are used by getty.
The initscripts system has changed to upstart for CentOS-6 so I don't think you can just drop a script in the directory. See [url=https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&topic_id=32150&forum=55]this thread[/url] for background.
As far as writing to a tty, just redirect the output "command > /dev/tty8". You may want to use /dev/tty8 and /dev/tty9 as lower ones are used by getty.