[Xymon] Configuring Devmon for the first time

[Ryan Novosielski]

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The X is a trick that deals with empty variables, and I suppose keeps
some interpreters from complaining about doing a test on a blank variable.

I've seen this done frequently enough to know that people do it, but I
agree, it looks a little odd and I'm not sure I'd write a program that
way myself. This is off topic, but I'd love to know if anyone has any
comments on that particular thing. Shortcut to avoid needing to check
for empty variables I guess?

On 05/31/2011 12:57 AM, Josh Luthman wrote:
> That probably makes more sense then to use Lynx, good idea.
> 
> What's with the "x" in the variable?
> 
> Would you mind telling me what values you used for date?
> 
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
> 
> 
> On Tue, May 31, 2011 at 12:53 AM, David Baldwin
> <david.baldwin at ausport.gov.au <mailto:david.baldwin at ausport.gov.au>> wrote:
> 
>     On 31/05/11 11:24 AM, kconnell at ryerson.ca
>     <mailto:kconnell at ryerson.ca> wrote:
>     > I've had issues with devmon not updating the bb-display and
>     everything going purple.
>     > I've had this issue since day one (which is over two years now).
>     >
>     > I created a "devmon watchdog" script that's runs every 5 min using
>     lynx (txt base html browser) which checks if the status of devmon
>     (shows as dm test) on bb-monitor. If its purple then I kill the
>     devmon process and start it up again....band-aid solution, but it
>     does the trick.
>     >
>     > I no script expert, but can share the bash script if you want/need.
>     >
>     Here's mine (replace xymonserver with your hostname):
> 
>     #!/bin/sh
>     COL=`bb xymonserver "hobbitdboard xymonserver.dm
>     <http://xymonserver.dm> fields=color"`
>     if [ "x$COL" == "xpurple"  ] ; then
>      (date "+%x %X restarting purple devmon"
>      /etc/init.d/devmon restart) | tee /var/log/devmon-restart.log | mail
>     -s "Restarting devmon" xymonadmin
>     fi


- -- 
- ---- _  _ _  _ ___  _  _  _
|Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Sr. Systems Programmer
|$&| |__| |  | |__/ | \| _| |novosirj at umdnj.edu - 973/972.0922 (2-0922)
\__/ Univ. of Med. and Dent.|IST/CST-Academic Svcs. - ADMC 450, Newark
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