Crontabs: Difference between revisions
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* an asterisk and a number separated by a '''forward slash''' ('''/''') indicate a periodicity. For example, '''*/10''' placed in the minute section would indicate that the specified action should occur every 10 minutes. | * an asterisk and a number separated by a '''forward slash''' ('''/''') indicate a periodicity. For example, '''*/10''' placed in the minute section would indicate that the specified action should occur every 10 minutes. | ||
* the '''day of week''' segment functions a bit differently than the others: | * the '''day of week''' segment functions a bit differently than the others: | ||
** 0 indicates Sunday and 1-6 indicate Monday through Saturday. | ** '''0''' indicates Sunday and '''1-6''' indicate Monday through Saturday. | ||
** since weekdays shift throughout the year, i.e., they are not dependent on specific days of a month, so when they are used with crontab in conjunction, the action will be executed when the current time matches the value in either field. For instance, ''5 5 5 * 5'' would cause the specified command to be executed at 5:05 AM every fifth day of every month plus every Friday. | ** since weekdays shift throughout the year, i.e., they are not dependent on specific days of a month, so when they are used with crontab in conjunction, the action will be executed when the current time matches the value in either field. For instance, '''5 5 5 * 5''' would cause the specified command to be executed at 5:05 AM every fifth day of every month plus every Friday. | ||
==Example== | ==Example== | ||