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Full Discussion: Run a command once in three hours
Top Forums Shell Programming and Scripting Run a command once in three hours Post 303027144 by ginrkf on Monday 10th of December 2018 07:27:37 AM
Old 12-10-2018
Run a command once in three hours
Hi All,

I have a bash script which is scheduled to run for every 20 minutes. Inside the bash script, one command which I am using need to be triggered only once in two or three hours.Is there anyway to achieve this.

For example,

Code:
if [ -f file ]
then
echo "hi"
else
echo "Hello"
UNIX Command---once in 3 hours
fi

In most cases file will not be there, so it will go to else portion and execute hello.. But this one I need to execute only once in 3 hours, instead of executing it every 20 minutes
 

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LEARN ABOUT DEBIAN

check-zone-expiration

CHECK-ZONE-EXPIRATION(1p)				User Contributed Perl Documentation				 CHECK-ZONE-EXPIRATION(1p)

NAME

       check-zone-expiration

SYNOPSIS

       # check-zone-expiration dnssec-tools.org paypal.com dnssec-tools.org    will expire in 26 days, 2 hours, 16 minutes, 36 seconds paypal.com
       will expire in 12 days, 17 hours, 7 minutes, 1 second

       # check-zone-expiration -m 1123200 dnssec-tools.org paypal.com paypal.com	  will expire in 12 days, 17 hours, 6 minutes, 22 seconds

DESCRIPTION

       The check-zone-exiration script reports how long until a zone will expire by querying for the zone's (top level) RRSIG and calculating how
       much time is left before the signatures will no longer be valid.  It will then report how much time is left in human readable form.

       If the -m switch is provided with a time argument (in seconds), it will only print output for zones that have less than that time left.

OPTIONS

       -m STRING
       --minimum-reporting=STRING
	   Minimum reporting time, or else be silent for the zone

COPYRIGHT

       Copyright 2012-2012 SPARTA, Inc.  All rights reserved.  See the COPYING file included with the DNSSEC-Tools package for details.

AUTHOR

       Wes Hardaker, hardaker@tislabs.com

SEE ALSO

       donuts(1)

perl v5.14.2							    2012-05-07						 CHECK-ZONE-EXPIRATION(1p)
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