# auto-del-log.sh

#!/bin/sh
for i in `find . -name "*.out" -o -name "*.log"`
do
  cat /dev/null > $i;
done;

# auto-del-log.rb

while true
  system 'sh /opt/auto-del-log.sh'
  sleep 10*60 #10 分钟清空一次log
end