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Old 07-12-2009, 03:56 AM   #1
Registered: Jul 2009
Location: Romania
Distribution: Ubuntu 10.04 Gnome 2
Posts: 97

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gnome-panel icon refresh

being a newbie on linux got this problem :
need a notification about ethernet cable pluged /unpluged (i use laptop on the field and need to check good/deffective cables)
wrote this bash script

while [ 1 ]
x=$(cat /sys/class/net/eth0/carrier)
if [ $q -eq 0 ];then notify-send -i /home/gabriel/netmon/off.png 'Network cable unpluged';let y=1;/home/gabriel/netmon/

if [ $q -eq 2 ];then notify-send -i /home/gabriel/netmon/on.png 'Network cable pluged';let y=0;/home/gabriel/netmon/
sleep 1
done and are another scripts using zenity notification system that tell gnome-panel to display icons acording to cable state but the problems is that script waits for zenity , and zenity waits for user input therefore the loop is paused.
instructing zenity with --timeout other than 0 results in clearing icon from panel and i need it to stay there
I need to know how to tell gnome-panel to display and change e.g. systray icon or a launcher icon without kiilall gnome-panel for refresh
Old 07-12-2009, 07:11 AM   #2
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Location: Tamil Nadu, India
Distribution: Debian except for netbook still on Slackware 13.37 (and I have to support Ubuntu)
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Hello yo8rxp

You could try backgrounding zenity[(on)|(off)].sh by putting a & after its path, for example.
/home/gabriel/netmon/ &
That way the calling script will continue running once it has called zenity[(on)|(off)].sh. Use ps (or whatever) to check whether zenity[(on)|(off)].sh terminates OK.


Old 07-12-2009, 08:10 AM   #3
Registered: Jul 2009
Location: Romania
Distribution: Ubuntu 10.04 Gnome 2
Posts: 97

Original Poster
Rep: Reputation: 20
works like a charm

guys from distrowatch web site are right saying " Put the fun back into computing"

thanks for the quick info ,it works great now.
There is a lot indeed to learn about programming ,hope to be on the right way.
cheers !


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