Hi, How can i launch a script when there are error logs in freeswitch log file. Actually i am using mod_shout as MOH with mod_local_stream, when someone enters a url of stream that is not responding i see logs all these. 2015-01-09 19:38:39.338003 [ERR] mod_local_stream.c:214 Can't open shout:// 174.37.194.139:8316 2015-01-09 19:38:41.337988 [ERR] switch_core_file.c:149 Invalid file format [shout] for [174.37.194.139:8316]! 2015-01-09 19:38:42.337988 [ERR] mod_local_stream.c:214 Can't open shout:// s9.voscast.com:7584 2015-01-09 19:38:42.337988 [ERR] switch_core_file.c:149 Invalid file format [shout] for [s9.voscast.com:7584]! I want to run an external script to remove that file or urls when there are errors logs in freeswitch. But i don't know how to trigger that script on errors in freeswitch log. Any help would be much appreciated. Thanks.