[CentOS] Shell Scripting Random Delay

[Thomas Johansson]

On 2013-05-15 17:44, Matt wrote:
> I have a shell script that's run every 5 minutes I use to call many
> other shell scripts.  Is there a way to wait a random number of
> seconds before executing each line?  Something like this.
>
> wait_random 10 - 180 (perl /scripts/my_script.pl) &
> wait_random 10 - 180 (perl /scripts/my_script5.pl) &
> wait_random 10 - 180 (perl /scripts/my_script7.pl) &
>
> I have many entries in this file and I background them all because
> most must poll network devices which can take time.  None should take
> over 2 minutes though.
>
> When I run them all at once they bog the system and cause some of
> latency graphs on equipment being monitored to look poor.

Wait randomized interval of 60 seconds and start

   perl -e "sleep(int(rand(60)))" && (perl /scripts/my_script.pl)