While developing I really like a dedicated screen with all the drupal log messages. Working on mac or *nix creating a new terminal window and doing a tail -f on the log file would be really nice. So I can do a tail -f on the apache error.log but I want to show the drupal log that is shown in admin/reports/dblog Where can I find it and or is it possible to let it output to a terminal screen and if so how?
You can use drush to do this:
$ drush help | grep watchdog watchdog-delete Delete watchdog messages. watchdog-list Show available message types and severity levels. A (wd-list) prompt will ask for a choice to show watchdog messages. watchdog-show Show watchdog messages.
drush watchdog-show has too many options to fully show here, but these are the examples:
drush watchdog-show Show a listing of most recent 10 messages. drush watchdog-show 64 Show in detail message with id 64. drush watchdog-show "cron run succesful" Show a listing of most recent 10 messages containing the string "cron run succesful". drush watchdog-show --count=46 Show a listing of most recent 46 messages. drush watchdog-show --severity=notice Show a listing of most recent 10 messages with a severity of notice. drush watchdog-show --type=php Show a listing of most recent 10 messages of type php. drush watchdog-show --tail --full Show a listing of most recent 10 messages with extended information about each one and continue showing messages as they are registered in the watchdog. drush watchdog-show --tail Do a tail of the watchdog with a --sleep-delay=2 delay of two seconds between each poll to the database.
You have to enable the Syslog module, and the log will be available in /var/log/drupal.log. For more information, you can read Syslog: OS-integrated logging.