Linux Start Restart and Stop The Cron or Crond Service

本文详细介绍了如何在Linux系统中启动、重启和停止Cron服务,适用于Red Hat、Fedora Core、CentOS、Debian及Ubuntu等发行版。此外,还提供了确保Cron服务在系统启动时自动运行的方法。

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H ow do I start, restart and stop the cron service under Linux / UNIX / BSD like operating systems?

Cron (crond) daemon or service is use to execute scheduled commands or scripts. cron wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute.

If you are using Redhat (RHEL)/Fedora Core/Cent OS Linux use the following commands.

Task: Start cron service

To start the cron service, use:
# /etc/init.d/crond start

Task: Stop cron service

To stop the cron service, use:
# /etc/init.d/crond stop

Task: Restart cron service

To restart the cron service, use:
# /etc/init.d/crond restart

If you are using Debian or Ubuntu Linux the following commands.

Task: Debian Start cron service

To start the cron service, use:
# /etc/init.d/cron start
OR
$ sudo /etc/init.d/cron start

Task: Debian Stop cron service

To stop the cron service, use:
# /etc/init.d/cron stop
OR
$ sudo /etc/init.d/cron stop

Task: Debian Restart cron service

To restart the cron service, use:
# /etc/init.d/cron restart
OR
$ sudo /etc/init.d/cron restart

Task : Start the cron service at boot time

It is recommended that you start the service at boot time so that job can run w/o problems.

If you are using Redhat (RHEL)/Fedora Core/Cent OS Linux use the following commands to ensure that the service remains enabled after a reboot:
# chkconfig crond on
You can use a text based GUI tool called ntsysv to enable crond service:
# ntsysv

If you are using Debian or Ubuntu Linux use the following commands to ensure that the service remains enabled after a reboot:
# rcconf
OR
$ sudo rcconf
You can use command line tool update-rc.d :
# update-rc.d cron defaults
OR
$ sudo update-rc.d cron defaults

转自:http://www.cyberciti.biz/faq/howto-linux-unix-start-restart-cron/

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