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Full Discussion: Schedule Job Fortnightly (FRI) in Crontab
Top Forums Shell Programming and Scripting Schedule Job Fortnightly (FRI) in Crontab Post 302850027 by KhawHL on Tuesday 3rd of September 2013 09:00:39 PM
Old 09-03-2013
Hi All,

Thanks for the reply.
I'd tried as below, but encountered error.

0 8 ** 6 [ $(( $(( $(date +%s ) / 86400 )) % 2 )) -eq 0 ] && $HOME/admin/scripts/rjob.sh
crontab: error on previous line; unexpected character found in line.
crontab: errors detected in input, no crontab file generated.

---------- Post updated at 08:51 AM ---------- Previous update was at 08:41 AM ----------

I'm able to schedule with below syntax. Shall feedback the result..
0 10 * * 5 [ $(( $(date +'\%U') % 2)) -gt 0 ] && /usr/local/bin/your_script

---------- Post updated at 09:00 AM ---------- Previous update was at 08:51 AM ----------

[QUOTE=Chubler_XL;302848241]No Solaris platform available to test but this crontab entry :

Code:
0 10 * * 5 [ $(( $(date +'\%U') % 2)) -gt 0 ] && /usr/local/bin/your_script

Or run your script every friday and test week of year is odd with

Code:
if [ $(( $(date +%U) % 2 )) -gt 0 ]


Tested using below:
at now [ $(( $(date +'\%U') % 2)) -gt 0 ] && /path/rjob.sh
ksh: \35 % 2: syntax error
 

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LEARN ABOUT DEBIAN

kep_reload

KEP_RELOAD(1)						      General Commands Manual						     KEP_RELOAD(1)

NAME

       kep_reload - Update Predict's Keplerian elements

SYNOPSIS

	kep_reload

DESCRIPTION

       KEP_RELOAD is a simple utility that forces an immediate reload of PREDICT's Keplerian database through a socket connection while PREDICT is
       running in server mode.	It is especially useful in environments where PREDICT runs continuously, and periodic  Keplerian  element  updates
       are made outside of PREDICT, such as through scripts run through a crontab.

       The  "kepupdate"  script  found	in this directory is an example of a Keplerian element update script that can be run on an automated basis
       through a crontab.  It is designed to be placed in your home directory under a subdirectory  called  "cronjobs".   It  downloads  Keplerian
       orbital	data  from  www.celestrak.com  using  the  HTTP  protocol.   (The  "wget" utility, available from the Free Software Foundation, is
       required, and is included in many Linux distrubutions.)

       Type crontab -e to edit your crontab.  Simply add the following entry:

	       0 8 * * * kepupdate

       and your orbital database will update each morning at 8:00 AM (provided you have a network connection at that time).

       See the crontab man page for more information on editing your crontab.

AUTHOR

       This man page was written by A. Maitland Bottoms, AA4HS, for Debian GNU/Linux.

								  31 August 2003						     KEP_RELOAD(1)
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