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RE: [hobbit] RE: SMS Alerts

You are correct.  I never program bash scripts.  I have always used bourne only to ensure the script will run on any server I put it on without going through hoops (just how I was raised).  Most modern shells have a Bourne-shell mode when called as /bin/sh.  Many modern linux distros have sh either hardlinked or symlinked to bash.    Didn't realize you could do string manipulation like that (I usually just pipe to cut)

=G=

From: Kip, D. - GDI/SNB [mailto:d.kip (at) gdi.minjus.nl]
Sent: Thursday, March 19, 2009 6:43 AM
To: hobbit (at) hswn.dk
Subject: RE: [hobbit] RE: SMS Alerts

Your suggestion indicates you do not understand what he was trying to do :)
He was trying to cut the hostname short, by having a maximum of 160 characters.
http://tldp.org/LDP/abs/html/string-manipulation.html (see the section Substring Extraction)

It is a feature for BASH shells, but maybe some modern Bourne shells have it as well (I know I used it on some modern HP/UX with their standard /bin/sh)
So putting the :0:160 outside the brackets would not yield the desired result.
On the other hand, hostnames rarely go that long, so cutting it short seems quite useless.

I am not familiar with gnokii, but does it actually take a message from stdin? Or does it normally use a 'gnokii --sendsms <number> <message>' format?
Otherwise, I don't see anything wrong with your syntax.
________________________________
Van: Galen Johnson [mailto:Galen.Johnson (at) sas.com]
Verzonden: donderdag 19 maart 2009 7:53
Aan: hobbit (at) hswn.dk
Onderwerp: [hobbit] RE: SMS Alerts
try:
echo "${BBHOSTNAME}:0:160 cpu is red" | gnokii --sendsms 1234567890


From: Jarrod Hodder [mailto:Jarrod.Hodder (at) pmg.net.au]
Sent: Thursday, March 19, 2009 12:18 AM
To: hobbit (at) hswn.dk
Subject: [hobbit] SMS Alerts

Hello,

I am trying to get a custom message sent from Hobbit via sms.
All I want is the hostname with a short message sent after it.

So far I have

#!/bin/bash
echo "${BBHOSTNAME:0:160} cpu is red" | gnokii --sendsms 1234567890

I am using gnokii as the gate way.
I think my variable is what is causing the problem, can someone see where I have gorn wrong?

Jarrod Hodder

Paradigm Management Group
110 Livingston Avenue
Kambah, ACT 2902

1300 735 370

Jarrod (at) pmg.net.au