Cronjob Error Log
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January 17, 2016 in Debian / Ubuntu, Troubleshooting, Ubuntu LinuxI am trying to find errors or message for my cron job on Ubuntu Linux server. Where is the cron crontab error log centos log in Ubuntu Linux 12.04/14.04 LTS server? How do I check cron logs no mta installed discarding output in Ubuntu server? How to check if crond server is enabled and/or is running properly on Ubuntu Linux ubuntu crontab error log server? You can use the following command to check crond and cron logs.
Is crond (cron server) running?Use the pgrep or ps command as follows to verify that crond is running:pgrepCrontab Error Log Location
cron ps aux | grep cron sudo service cron status sudo status cronSample outputs:Fig.01: Is cron service running on Debian or Ubuntu Linux? You can check /var/log/syslog file to find out if cron service running or not using the grep command as follows: $ sudo grep --color -i cron /var/log/syslog Sample outputs:Jan 17 17:43:21 planetvenus cron[229]: (CRON) INFO (pidfile fd = cron error log 3) Jan 17 17:43:21 planetvenus cron[240]: (CRON) STARTUP (fork ok) Jan 17 17:43:21 planetvenus cron[240]: (CRON) INFO (Running @reboot jobs) Jan 17 18:01:01 planetvenus cron[240]: (*system*cache) NOT A REGULAR FILE (/etc/cron.d/cache) Jan 17 18:01:01 planetvenus cron[240]: (*system*output) NOT A REGULAR FILE (/etc/cron.d/output) Jan 17 18:11:45 planetvenus root: cronplanet Jan 17 18:12:11 planetvenus root: cronplanet Jan 17 18:17:01 planetvenus CRON[3911]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jan 17 18:23:31 planetvenus cron[3927]: (CRON) INFO (pidfile fd = 3)Where are cron logs stored on Ubuntu Linux?The logs are stored in /var/log/cron.log file. You need to configured it as follows. Edit /etc/rsyslog.d/50-default.conf file using a text editor such as vi or nano: $ sudo vi /etc/rsyslog.d/50-default.conf OR $ sudo nano /etc/rsyslog.d/50-default.conf Find the line:#cron.* /var/log/cron.logUncoment the line (i.e. remove #):cron.* /var/log/cron.logRestart the following two services: $ sudo service rsyslog restart
$ sudo service cron restart Sample outputs:rsyslog stop/waiting rsyslog start/running, process 4004 cron stop/waiting cron start/running, process 4014Now, where are cron errors logged in Ubuntu LTS server?You need to view /var/log/cron.log file using the grep or tail command: $ sudo grep something /var/log/cron.lo
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Crontab Error While Writing New Crontab To /var/spool/cron/tmp
question and answer site for Ubuntu users and developers. 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 are http://www.cyberciti.biz/faq/how-to-check-cron-logs-in-ubuntu-linux/ voted up and rise to the top Where is the cron / crontab log? up vote 375 down vote favorite 106 I want to verify if my cron job is executing and what time. I believe there is a 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') http://askubuntu.com/questions/56683/where-is-the-cron-crontab-log 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 24k91386589 asked Aug 11 '11 at 12:06 Scott Szretter 2,015397 add a comment| 5 Answers 5 active oldest votes up vote 428 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 14.9k43449 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 equivalent. –Navigatron Jan 31 '14 at 10:21 use journalctl | grep cron on systemd systems –Student Nov 12 '14 at 19:57 this doesn't give me output from the job. it just gives a generic message that the cron was processed. –chovy Dec 12 '15 at 0:34 I have no
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings http://stackoverflow.com/questions/4811738/cron-job-log-how-to-log and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring 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 error log takes a minute: Sign up Cron Job Log - How to Log? up vote 93 down vote favorite 19 I want to know how I can see exactly what the cron jobs are doing on each execution. Where are the log files located? Or can I send the output to my email? I have set the email address to send crontab error log the log when the cron job runs but I haven't received anything yet. logging crontab share|improve this question edited Sep 29 '13 at 15:19 Nakilon 19.5k86186 asked Jan 27 '11 at 0:20 Adrian M. 1,62393146 add a comment| 5 Answers 5 active oldest votes up vote 150 down vote accepted * * * * * myjob.sh >> /var/log/myjob.log 2>&1 will log all output from the cron job to /var/log/myjob.log You might use mail to send emails. Most systems will send unhandled cron job output by email to root or the corresponding user. share|improve this answer edited Jun 19 '14 at 15:56 answered Jan 27 '11 at 0:28 Spliffster 2,99321417 31 Description of what means 2>&1: stackoverflow.com/questions/818255/in-the-bash-shell-what-is-21 –Yamaneko Sep 26 '12 at 14:26 1 what could be the issue if this logfile is never created? –clamp Dec 20 '13 at 10:57 7 FWIW, If you want both stderr and stdout in the log, the 2>&1 has to come after the indirection: myjob.sh >> /var/log/myjob.log 2>&1 –Dan Lecocq Apr 23 '14 at 17:08 Spliffster, could you updat