search for: create_graph_out

I have a script file in my cron.hourly that contains a good number of scripts I must call. #!/bin/sh sleep 15 perl /scripts/create_graph.pl & sleep 15 perl /scripts/create_graph_out.pl & many more lines. etc. Is there a way I can sleep random length to time before executing each but background each one so master script returns promptly. Something like. sleep (random 1 - 300 seconds, perl /scripts/create_graph_out.pl) &