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Top Forums Shell Programming and Scripting Run this grep every 10 minutes and do something based on the output Post 302929527 by kraljic on Monday 22nd of December 2014 11:59:09 AM
Old 12-22-2014
Thank You Robin.

I wanted the IF.. THEN.. ELSE block to continue executing every 10 minutes until grep command does not see the the string "Processing" in this file.

Thank You Junior Helper. I think your solution works fine for my requirement. I need to test it in my real life script. THANK YOU.

I was under the impression that the number mentioned for sleep command is in minutes not seconds. Just realized that I was wrong

ie.

sleep 30 means sleep for 30 seconds not 30 minutes .

One more question:
Why are you redirecting the output of grep -v Processing status.txt to bit bucket &>/dev/null ?
 

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rhsm-icon(8)						    Subscription Status Daemon						      rhsm-icon(8)

NAME
rhsm-icon - Periodically checks installed products against active subscriptions to check their status. SYNOPSIS
rhsm-icon [--check-period] [--force-icon=warning|expired|partial] [--check-immediately] DESCRIPTION
Red Hat provides content updates and support by issuing subscriptions for its products. These subscriptions are applied to systems (machines) and apply to the installed software products. On graphical X systems (systems with a GUI interface), a product status daemon runs every 4 hours to check the currently installed software against the applied subscriptions. If software is installed without a valid and applied subscription (such as a subscription expires or no subscription is available for the product), then the daemon triggers an icon and warning message to display in the notification area of the menu. rhsm-icon only runs on graphical (X-based) systems. Servers which do not have a GUI interface do not run or require the rhsm-icon daemon. OPTIONS
-c, --check-period Sets the interval to use between checks for the product subscription status. The value is in seconds. -f, --force-icon=TYPE Manually displays the given type of icon in the start menu. The TYPE can be warning, expired, or partial and uses a different icon for each type of message. --i, --check-immediately Runs the status check process immediately when the command is invoked. Otherwise, there is a four (4) minute delay before running the check. -d, --debug Shows debug messages for the daemon. USAGE
There are two reasons to invoke rhsm-icon manually: * To run the daemon on a new schedule (immediately or with a different frequency) * To view the status icons or messages regardless of the state of the machine Since X runs the daemon automatically and on schedule, it is not necessary to launch the subscription status daemon manually. The rhsm-icon command can change this schedule. For example: rhsm-icon --check-period 120 Administrators can also run rhsm-icon to view any immediate changes to the subscription status of the system. Using the --check-immediately option runs the check at the time the command is run; otherwise, running rhsm-icon has a four-minute delay before running the status check. rhsm-icon --check-immediately If you just want to know what the different subscription status messages look like, then use the --force-icon option. (Also use the --check-immediately option, or the scan will take the standard four minutes to run and display the icon.) rhsm-icon --force-icon=warning --check-immediately rhsm-icon --force-icon=expired --check-immediately rhsm-icon --force-icon=partial --check-immediately BUGS
This daemon is part of Red Hat Subscription Manager. To file bugs against this daemon, go to https://bugzilla.redhat.com, and select Red Hat > Red Hat Enterprise Linux > subscription-manager. AUTHORS
Deon Lackey, <dlackey@redhat.com>, and James Bowes, <jbowes@redhat.com>. rhsm-icon was written by James Bowes. COPYRIGHT
Copyright (c) 2010-2012 Red Hat, Inc. This is licensed under the GNU General Public License, version 2 (GPLv2). A copy of this license is available at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. version 1.3 December 12, 2012 rhsm-icon(8)
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