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Full Discussion: Email alert when client in blacklist joins network
Top Forums UNIX for Beginners Questions & Answers Email alert when client in blacklist joins network Post 302971633 by lowmaster on Friday 22nd of April 2016 07:17:32 PM
Old 04-22-2016
Quote:
Originally Posted by Don Cragun
If you want to keep I/O to a flashdrive to a minimum, why are you accessing that flashdrive at least four times every 4 seconds?
Thats a good point! I need to fix this. 8-)

Quote:
If you have a list of strings to search for, why do you have to test every four seconds whether or not your list exists?
The list changes, but reading it once every hour should be sufficient

If you have a program you want to run every 4 seconds and you want to minimize accesses to a flashdrive, why is the program you want to run on a flashdrive?

Quote:
What does /var/media/ftp/look.sh do? Does it invoke any other software that is located on that flashdrive? Does it access any other files that are located on that flashdrive?
Look.sh calls a system internal function which goes through a set of arrays with which you can output several information. in this case I just let output clients in the network and its state (active/online)

Quote:
Why are any of these files on a flashdrive if you don't want to access the flashdrive?
it is how it is...

Quote:
What output does /var/media/ftp/look.sh produce?
lines in the output like in the alertlist.txt

Quote:
Can a string in /var/media/ftp/alertlist.txt appear in the output from /var/media/ftp/look.sh more than once?
If you mean as a part of a string yes. so if alertlist.txt contains hans, look.sh could output this what I would like to have considered

hans
hansolo
Hansala

Hans joined
Hansala left
Hans left
hansolo joined

etc...

Quote:
If these strings are people's names or login IDs, do you really need case insensitive matches? Are UserName and username to be treated as different strings or as a single string?
ideally yes
 

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