Hi,

I have a program that constantly displays values on the screen. The program 
'ping' for example.

What I'd like to do is watch the output and as soon as i see some values, i 
would do something. For example, as suppose when pinging a host I would 
constantly get a reply. however, if I remove the network cable, of my pc, I 
would start seeing host unreachable or something. As soon as I see this 
message, I would like to do something. This is how I want to do this (executing 
the program once and watching the output). I could probably run ping every one 
second and check the output of each execution, however, that is not how I want 
to do it. The program I will be running has to be run only once, like for 
example the 'top' program.

Any idea how to accomplish this?


Thanks!
-mic


      

-- 
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/


Reply via email to