Solved: Cron missing newline before EOF
Cause of the error
Cron expects a trailing newline character at the end of each line in the
crontab. Editors like vim and nano add this character automatically.
This error may also happen when a crontab file is generated automatically and the generator failed to insert a newline character at the end of the crontab file.
Solution
Simply add a new line at the end of the crontab file. If the problem occurs frequently, it may be caused by the text editor. Check if your editor automatically adds a newline character or change your editor entirely.
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How to view and read cron logs on Ubuntu, Debian and CentOS?
Cron can generate logs, which are very useful in troubleshooting your cron jobs. In this quick tutorial, we will take a look at cron logs – how to find them and how to read them.
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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How to save cron job output to file?
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.
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Solved: Crontab bad minute error
Cron reads every line of the crontab. If the line is not a comment or an environmental variable, cron expects a correct and valid minute expression of the cronjob. If there is an invalid minute expression (e.g. a typo), cron will throw a **Bad minute error**.
Questions
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