randomize execution the a script?
chowse at charter.net
Thu Sep 18 03:49:56 PDT 2003
> Gil Agno Virtucio wrote:
> > Hi. I want to randomize the execution of a shell script.
> Can i use cron
> > to do this? or are there other available tools that i can
> use to do this?
> See 'man 6 random' and 'man sleep'.
> Then try doing something like this in the background:
> while true
> random -e 60
> sleep $randomNumber
> <do shell script here>
> Where '60' means, maximum 60 seconds between two script calls.
> There might be better or nices ways of doing this :).
I don't happen to have random installed on my system, however jot is
installed with the base system, and will generate random numbers quite
well. For example 'jot -r 1 1 60' will generate a single random number
between 1 and 60.
Won't randomNumber=$? Just return 0 if the previous command completes
Shouldn't it be:
randomNumber=`random -e 60`
Or better yet randomNumber=`jot -r 1 1 60`
More information about the freebsd-questions