Your are the man. After mispelling the script name I found that cron is running. After digging a bit the problem was the scrip with perms 750. After changed to 755 is running just fine. Thanks a lot. CU.
I tried many ways, including output the results to txt like your example. The question is that nothing happens. the ouput file is just not being generated. the cron job is not being executed. looks like the crontab service is just not running.