group can not be in temp_groups, in that case, dont fail
add some logs
handle timeout when connecting the flickr api
dont fail just because there is no empty string
avoid sending a cron mail just for the ids ... put them in the log file
put this script logs in the log dir
in some case, a disk can be mounted several times, but it will always have the same size
also put error logs in a log file
add a script to clean logs (they become big very fast)
pid must be an int