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Top Forums Shell Programming and Scripting cron to get executed on 2nd and 4th saturday of every month Post 302686513 by methyl on Tuesday 14th of August 2012 06:30:24 PM
Old 08-14-2012
From a syntax point of view, it should be something like this:

Code:
30 17 8-14 * * [ `date +\%u` -eq 6 ] && /rebootscript # to reboot every second saturday
30 17 22-28 * * [ `date +\%u` -eq 6 ] && /rebootscript # to reboot every fourth saturday



Quote:
30 17 8-14 * 6 /rebootscript
30 17 22-28 * 6 /rebootscript
These two do not work because you can only have one cron value defining "Day of Month" or they become cumulative. These examples would try to reboot the server twice at 17:30 every Saturday and also once every day on days 08-14 and 22-28 of the month.

Last edited by methyl; 08-14-2012 at 07:41 PM..
This User Gave Thanks to methyl For This Post:
 

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HALT(8) 							       halt								   HALT(8)

NAME
halt, poweroff, reboot - Halt, power-off or reboot the machine SYNOPSIS
halt [OPTIONS...] poweroff [OPTIONS...] reboot [OPTIONS...] DESCRIPTION
halt, poweroff, reboot may be used to halt, power-off or reboot the machine. OPTIONS
The following options are understood: --help Prints a short help text and exits. --halt Halt the machine, regardless of which one of the three commands is invoked. -p, --poweroff Power-off the machine, regardless of which one of the three commands is invoked. --reboot Reboot the machine, regardless of which one of the three commands is invoked. -f, --force Force immediate halt, power-off, reboot. Do not contact the init system. -w, --wtmp-only Only write wtmp shutdown entry, do not actually halt, power-off, reboot. -d, --no-wtmp Do not write wtmp shutdown entry. --no-wall Do not send wall message before halt, power-off, reboot. EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. NOTES
These are legacy commands available for compatibility only. SEE ALSO
systemd(1), systemctl(1), shutdown(8), wall(1) systemd 208 HALT(8)
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