Bash script, if else statement to ping & ssh connection to correct i.p.

VipX1 · 12-31-2009, 07:51 PM

Code:

#!/bin/bash
if  ping -b -c 1 10.0.1.10
then
gnome-terminal -x ssh 10.0.1.10
else
gnome-terminal -x ssh www.mywebserver.com
fi

That's what is inside my .sh file that my 'Taskbar launcher' points to..

Result, if I am on the same local network as my web server
else I am at home the launcher still works.

However, the scripts always suffers from a slight delay while the ping result is sought regardless of where I am dialing in from.
If I just have the blue line in the .sh file and connect from home the connection time is impressive (I use Keys). I'd like to retain that connection time.

Can anyone improve on the way I am establishing which i.p./domain to use?

bartonski · 12-31-2009, 09:27 PM

This is a job for dnsmasq (lightweight DNS server, good for home LAN).

If you don't want to do this, I would try this:

Code:

#!/bin/bash
gnome-terminal -x (ssh 10.0.1.10 || ssh www.mywebserver.com)

[edit: nope, doesn't work, and doesn't seem to want to, no matter how I quote it]

VipX1 · 12-31-2009, 11:05 PM

Code:

gnome-terminal -x ssh 10.0.1.10 && gnome-terminal -x ssh www.mywebserver.com

This way opens 2 x terminal windows. I then configure the particular servers in /etc/ssh/ssh_config to try for 3 x seconds and close the terminal.
The successful connection stays open.
A bit messy...