cron
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cron [2012/02/08 13:38] k2patel created |
cron [2012/02/08 13:50] k2patel [Special Usage] |
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| ==== Special Usage ==== | ==== Special Usage ==== | ||
| + | Following Special words replaces common conventional usage | ||
| + | |||
| <code bash> | <code bash> | ||
| @reboot #Run once, at startup. | @reboot #Run once, at startup. | ||
| Line 13: | Line 15: | ||
| @midnight #(same as @daily) | @midnight #(same as @daily) | ||
| @hourly #Run once an hour, "0 * * * *". | @hourly #Run once an hour, "0 * * * *". | ||
| + | </code> | ||
| + | |||
| + | Following variables you can define in cron as standard environment. | ||
| + | <code bash> | ||
| + | SHELL=/bin/bash | ||
| + | PATH=/sbin:/bin:/usr/sbin:/usr/bin | ||
| + | MAILTO=root | ||
| + | HOME=/ | ||
| + | </code> | ||
| + | |||
| + | ==== Usage ==== | ||
| + | Most common Usage terms defined as below. | ||
| + | <note tip>when you use "*" it consider all like "* * * * *" considered as every minute of 24/7</note> | ||
| + | <code bash> | ||
| + | # Minute Hour Day of Month Month Day of Week Command | ||
| + | # (0-59) (0-23) (1-31) (1-12 or Jan-Dec) (0-6 or Sun-Sat) | ||
| + | 0 2 12 * 0,6 /bin/sshcheck | ||
| </code> | </code> | ||
cron.txt ยท Last modified: 2020/08/10 02:35 (external edit)
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