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Full Discussion: Listen sharp time to run a command inside a script
Top Forums Shell Programming and Scripting Listen sharp time to run a command inside a script Post 303001556 by apmcd47 on Monday 7th of August 2017 09:56:20 AM
Old 08-07-2017
Quote:
Originally Posted by baris35
Hello,
Just wondered if there is any possibility to run a command at sharp time inside a script in linux. My question is not about crontab

Example:

Code:
#!/bin/bash

cd /home/database

for i in *
do
command 1
if time is 19:00, day is Monday then run command2
if time is 20:00, day is Tuesday, then run command3
if time is 22:00, day is Friday, then run command4
if time is 00:00, day is Thursday, then run command5
done

sleep 2
exit 0


many thanks
Boris
I'm not sure what you mean by "sharp time" but does this help?
Code:
#!/bin/bash

cd /home/database

for i in *
do
   command 1
   case $(printf "%(%H:M_%u)T" -2) in
       19:00_1) command2 ;;
       20:00_2) command3 ;;
       22:00_5) command4 ;;
       00:00_4) command5 ;;
   esac
done

sleep 2
exit 0

The -2 argument to printf tells bash to substitute the time the shell (in this case the script) was invoked. You need bash 4.2 or later for this I believe.

Andrew
These 2 Users Gave Thanks to apmcd47 For This Post:
baris35 rbatte1
 

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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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