Linux Crond timed Tasks

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Configuration files, generally do not need tube

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This kind of topic must pay attention to traps

Once every two hours

* */2 * * * this is wrong.

XX */2 * * * that's right .

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If it's just one day, make sure the day

If it's a day of the week, make sure the week

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Code, configuration change release process:

Personal Development environment -- Office test environment -->IDC Room test environment -->IDC Formal Environment

Notice the problems with some of the commands

For example:

*/1 * * * * echo "= =" >>/tmp/test.log >/dev/null 2>&1

More standard output.

*/1 * * * * tar zvfp/tmp/test_$ (date +%f). tar.gz/etc/hosts

but I can do it without escaping, but add P.

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command full path, or define the PATH environment variable in the script

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You can also debug through logs

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Linux timed Task Production Java service failed to execute problem group friend case

http://oldboy.blog.51cto.com/2561410/1541515

Command passwd error due to inode node processing record

Http://blog.sina.com.cn/s/blog_506ed9e6010106kj.html

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This directory CentOS5, 6 has no such software, the default is not installed, for the C6:

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Self-simulation:

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When you turn it off, you won't receive the mail, and you'll be filled with these large numbers of small files.

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Error configuration

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Linux Crond timed Tasks