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Full Discussion: Need way to grep the following output in bold
Top Forums Shell Programming and Scripting Need way to grep the following output in bold Post 303014424 by rovf on Monday 12th of March 2018 08:58:41 AM
Old 03-12-2018
Quote:
Originally Posted by jaapar
I was able to get the output of 3 lines but not managed to create a logic when the read go above 600MB.

Code:
[root@xxxx ~]# iotop -bot --iter=1 |grep "Actual DISK READ"| awk {'print $5'}
145.13
[root@xxxx ~]#

So, basically, you want to test, whether a number containing a decimal point is larger than 600?

If you are using Zsh as a shell, you have decimal arithmetic, and can simply compare the number you get numerically to 600. This is probably the most straightforward way.

If you are using a shell, which has only integer arithmetic, you can just remove everything starting from the dot, which in your example would leave you with 145, and if this is numerically greater or equal to 600, you are sending your email.

The third possibility is to move the logic into awk. Currently, you always output $5. You could print this only if $5 is numerically greater than 600. This means that whenever you get a non-empty output, you have to send the email.

Which approach you take, is just a matter of taste.....
This User Gave Thanks to rovf For This Post:
jaapar
 

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LEARN ABOUT DEBIAN

rt-email-dashboards-4

rt-email-dashboards(8)					     Request Tracker Reference					    rt-email-dashboards(8)

NAME

       rt-email-dashboards - Send email dashboards

SYNOPSIS

	   rt-email-dashboards [options]

DESCRIPTION

       This tool will send users email based on how they have subscribed to dashboards. A dashboard is a set of saved searches, the subscription
       controls how often that dashboard is sent and how it's displayed.

       Each subscription has an hour, and possibly day of week or day of month. These are taken to be in the user's timezone if available, UTC
       otherwise.

SETUP

       You'll need to have cron run this script every hour. Here's an example crontab entry to do this.

	   0 * * * * /usr/bin/perl /opt/rt4/local/sbin/rt-email-dashboards

       This will run the script every hour on the hour. This may need some further tweaking to be run as the correct user.

OPTIONS

       This tool supports a few options. Most are for debugging.

       -h
       --help  Display this documentation

       --dryrun
	       Figure out which dashboards would be sent, but don't actually generate or email any of them

       --time SECONDS
	       Instead of using the current time to figure out which dashboards should be sent, use SECONDS (usually since midnight Jan 1st, 1970,
	       so 1192216018 would be Oct 12 19:06:58 GMT 2007).

       --epoch SECONDS
	       Back-compat for --time SECONDS.

       --all   Ignore subscription frequency when considering each dashboard (should only be used with --dryrun for testing and debugging)

perl v5.14.2							    2013-05-22						    rt-email-dashboards(8)
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