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Any cron job can generate output. It may be log or error messages. Regardless of
the nature of the output, you may want to save this output to a file. This can
be done using the > operator.
Saving cron job output to file
To save the output from the cron job running the shell script to a file, use the following command:
* * * * * /bin/backup.sh > /bin/file.txt 2>&1
Let's break down this cron job:
/bin/backup.sh > /bin/file.txtstates that the output from/bin/backup.shwill be redirected and saved in the/bin/file.txt2>&1states that the standard error (2>) is redirected to the same file descriptor that is pointed by standard output (&1)
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How to get cron job errors in email with MAILTO?
One of the neat features of Cron is the ability to send emails when an error occurs during the execution of the cronjob. This can be done using the `MAILTO` environmental variable. When executing cronjob, any output is mailed to the owner of the crontab or to the user or email address specified in the `MAILTO` environment variable in the crontab, if such exists.
Questions -
How to list and view all current cron jobs?
Cron is a command-line job scheduler on Unix-like systems. It allows you to run automated tasks in the background and it's especially useful for repetitive jobs.
Questions -
How to set up a cron job for a specific time and date?
In this quick tutorial, we will take a look at how to set up a cron job to run at a specific time.
Questions -
How to prevent duplicate cron jobs from running?
Sometimes you may find that duplicate cronjobs are running at the same time. This may happen when the cronjob takes longer to complete than its execution interval. Here is a simple way to prevent this from happening ever again.
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