+
+┌──────────── [optional] seconds (0 - 59)
+| ┌────────── minute (0 - 59)
+| | ┌──────── hour (0 - 23)
+| | | ┌────── day of month (1 - 31)
+| | | | ┌──── month (1 - 12) OR jan,feb,mar,apr ...
+| | | | | ┌── day of week (0 - 6, sunday=0) OR sun,mon ...
+| | | | | |
+* * * * * * command
+
+
+
+
+
+
+ Symbol
+ |
+
+ Meaning
+ |
+
+ Example
+ |
+
+ Equivalent
+ |
+
+
+
+
+ * |
+ Any value |
+
+ * * * *
+ |
+ Every minute |
+
+
+ - |
+ Range of values |
+
+ 1-10 * * *
+ |
+ Minutes 1 through 10 |
+
+
+ , |
+ List of values |
+
+ 1,10 * * *
+ |
+ At minutes 1 and 10 |
+
+
+ / |
+ Step values |
+
+ */10 * * *
+ |
+ Every 10 minutes |
+
+
+ @yearly |
+ Once every year at midnight of 1 January |
+
+ @yearly
+ |
+ 0 0 1 1 * |
+
+
+ @annually |
+ Same as @yearly |
+
+ @annually
+ |
+ 0 0 1 1 * |
+
+
+ @monthly |
+ Once a month at midnight on the first day |
+
+ @monthly
+ |
+ 0 0 1 * * |
+
+
+ @weekly |
+ Once a week at midnight on Sunday morning |
+
+ @weekly
+ |
+ 0 0 * * 0 |
+
+
+ @daily |
+ Once a day at midnight |
+
+ @daily
+ |
+ 0 0 * * * |
+
+
+ @midnight |
+ Same as @daily |
+
+ @midnight
+ |
+ 0 0 * * * |
+
+
+ @hourly |
+ Once an hour at the beginning of the hour |
+
+ @hourly
+ |
+ 0 * * * * |
+
+
+ @reboot |
+ Run at startup |
+ |
+ |
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+