2>&1 tells the cron to send errors (STDERR) to same target than normal output (STDOUT) After this you won’t see any output or. switch it off when you are happy you have no errors otherwise your inbox will fill rapidly! Add /dev/null redirection at the end of the line, as follows: >/dev/null tells the cron to send all output (STDOUT) to /dev/null, which acts as a black hole for useless data. A fresh start being useful, I deleted the cron job I created manually, as well as the one in ISPConfig Then I created the cron job manually again, and it works like a charm, it is recorded in both the cron.log file (much easier to read than rsyslog.log) and in my simili-cms log. If you put your email in the box at the top, you will recieve cron output as it is run. I copied it into the root folder of the domain, and went to CPanel and opened the "cron jobs" option and typed "crontab crontab.mine" saved it and it was populated with the jobs. There are three parameters: -q (lowercase q) turns on quiet mode turning off any output. The messages didnt indicate any problems, just that things were running smoothly.
#Wget cron job no output upgrade#
5 x *) and as long as you have put your url, inc trailing slash in the ELGG = bit I think it should work. Wget is a command line program that retrieves content from web servers. MailScanner Cron Jobs (Ubuntu 6.06.2 LTS w/ Mailscanner 4.68.8-1) I recently performed a MailScanner upgrade on a mail server that I maintain, and I noticed that afterwards I was receiving tons of messages from the MailScanner cron jobs that were running.
take the example crontab in your inrallation folder and rename it "crontab.mine" it did not work first time (or second but I'll come onto that) go to the bit that says "do not edit below this line" and delete the expression, I think it is wrong, use * * * * * (i.e. I don't know that wget can do what you ask, but if you were to use a temp file and replace the real file on success you wouldn't need wget to do anything different. Grep output Aug 6 15:41:01 scalablegpu3 CRON: (myuser) CMD (/raid/myuser/database_extraction/run_extraction > /raid/myuser/database_extraction/extraction.log)Īug 6 15:42:01 scalablegpu3 CRON: (myuser) CMD (/raid/myuser/database_extraction/run_extraction > /raid/myuser/database_extraction/extraction.log)Ĭrontab entry * * * * * /raid/myuser/database_extraction/run_extraction > /raid/myuser/database_extraction/extraction.Hi, having spent far too long having to work it out, I will give you the benefit of my experience, without cryptic suggestions. Normally, any script that requires a cron job will. Ran the command manually without the q option and found that wget fails because it doesn’t like the self-signed certificate we’re using. For example, to discard the output may require adding something like this: /dev/null 2>&1. I've considered setting up environment variables, but given that even the echo $USER is not producing logging output, something more fundamental seems to be the issue. Then it occurred to me that wget’s q switch is suppressing the output and in theory, the o switch’s logging output. The bash script works when run from the command-line. More importantly, the python script does not seem to be run as there's no output created from it. The log file is being created, but nothing is added to it. A daily call to your sites WordPress Cron that triggers at midnight. The file run_extraction.sh has the shebang at the top and execution rights with chmod +x. Note: without delete-after option, wget would save the output of the HTTP GET request. The system is clearly running as shown when running sudo grep CRON /var/log/syslog.
You might need to adjust the path to the wget executable. usr/bin/wget -output-document/dev/null >/dev/null 2>&1.
For example the 'minute' cronjob command would be. I've tried to go through all the suggestions at Why crontab scripts are not working?, but nothing has helped. If the Elgg engine notices a visit to such an url, it will execute the Elgg-cronjob registered by Elgg core and plugins.
#Wget cron job no output manual#
Cron jobs are important because they automate tasks that reduce manual operations to help with security, performance, and functionality for an administrator and all of the users of the server or website. A few examples include checking for updates, backups, or sending out reminder notifications. I have the cron job below set up through crontab -e. A cron job is an automated background task scheduled to happen at a specific time.
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