Error Log Cron
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Cron Tutorial
us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and crontab error log answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers linux cron error log are voted up and rise to the top Where are cron errors logged? up vote 71 down vote favorite 11 If I setup cron jobs incorrectly they appear to silently fail. Where should I look for an error log to understand what went wrong? cron scheduling logs share|improve this question edited May 4 '13 at 20:26 Anthon 47.5k1462125 asked Aug 11 '10 at 2:19 Brian Lyttle 511169 add a comment| 8
Cron Error Log Location
Answers 8 active oldest votes up vote 62 down vote As others have pointed out, cron will email you the output of any program it runs (if there is any output). So, if you don't get any output, there are basically three possibilities: crond could not even start a shell for running the program or sending email crond had troubles mailing the output, or the mail was lost. the program did not produce any output (including error messages) Case 1. is very unlikely, but something should have been written in the cron logs. Cron has an own reserved syslog facility, so you should have a look into /etc/syslog.conf (or the equivalent file in your distro) to see where messages of facility cron are sent. Popular destinations include /var/log/cron, /var/log/messages and /var/log/syslog. In case 2., you should inspect the mailer daemon logs: messages from the Cron daemon usually appear as from root@yourhost. You can use a MAILTO=... line in the crontab file to have cron send email to a specific address, which should make it easier to grep the mailer daemon logs. For instance: MAILTO=my.offsite.email@example.org 00 15 * * * echo "Just testing if crond sends email" In case 3., you can test if the program was actually run by appending another command wh
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Cron Job Ubuntu
Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: http://unix.stackexchange.com/questions/207/where-are-cron-errors-logged Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Where is the cron / crontab log? up vote 377 down vote favorite 107 I want to verify if my cron job is executing and what time. I believe there is a log http://askubuntu.com/questions/56683/where-is-the-cron-crontab-log for my sudo crontab -e jobs, but where? I searched google and it I found references to look in /var/log (which I do not see anything with 'cron') and to edit the file /etc/syslog.conf which I also do not have. ? cron log crontab share|improve this question edited Aug 11 '11 at 14:11 Jorge Castro 24.3k91386589 asked Aug 11 '11 at 12:06 Scott Szretter 2,025397 add a comment| 5 Answers 5 active oldest votes up vote 431 down vote On a default installation the cron jobs get logged to /var/log/syslog You can see just cron jobs in that logfile by running grep CRON /var/log/syslog If you haven't reconfigured anything,the entries will be in there. share|improve this answer edited Aug 16 '12 at 10:27 user76204 answered Aug 12 '11 at 10:58 Richard Holloway 15k43449 16 If there is no MTA installed, cron just throws the job output away. –Barry Kelly Nov 18 '13 at 23:19 1 The cron log may be in another file in the /var/log/ directory. Check for cron.log or equi
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring http://stackoverflow.com/questions/3069624/running-a-php-script-via-cron-how-can-i-log-any-output developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up running a php script via cron, how can I log any output? up vote 6 down vote favorite 1 Morning all, I have a php script which I have been testing, and error log seems to run fine when I call it from the command line. I now want to automate it via cron, how can I get the outputs I have put into the file as checkpoints into a log file? eg I have some simple echo commands in the script and I'd like the output to appear inside an existing log file (so that it get's automatically rotated etc) thanks, Greg php logging cron share|improve this question asked Jun 18 '10 cron error log at 12:41 kitenski 31911022 UNIX-based crons will email the output(s) of the job to the user under whose ID the job is running. So if you don't want to mess with output redirection as suggested in the other answers, you could just look at those auto-emails. –Marc B Jun 18 '10 at 17:18 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote accepted Cron command to run: /path/to/php -f /path/to/script.php >> /path/to/logfile.txt share|improve this answer edited Feb 4 '15 at 5:16 Joseph 5201425 answered Jun 18 '10 at 12:42 Your Common Sense 110k19103178 >> to append to the log file. –Annika Backstrom Jun 18 '10 at 12:45 thanks - if I use /var/log/cron as the logfile, is that ok? That way it will get automatically archived, trimmed etc –kitenski Jun 18 '10 at 12:46 add a comment| up vote 1 down vote Try something like this: