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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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yum-cron

yum-cron(8)															       yum-cron(8)

NAME

       yum-cron - an interface to convieniently call yum from cron

SYNOPSIS

       yum-cron [config-file]

DESCRIPTION

       yum-cron  is  an  alternate  interface to yum that is optimised to be convenient to call from cron.  It provides methods to keep repository
       metadata up to date, and to check for, download, and apply updates.  Rather than accepting many different command line arguments, the  dif-
       ferent functions of yum-cron can be accessed through config files.

       config-file  is	used  to optionally specify the path to the configuration file to use.	If it is not given, the default configuration file
       will be used.  It is useful to be able to specify different configuration files for different use cases.  For  example,	one  configuration
       file  might  be set to update the repository metadata, and a line could be added to the crontab to run yum-cron frequently using this file.
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FILES

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SEE ALSO

       yum (8)

AUTHORS

       See the Authors file included with this program.

BUGS

       There of course aren't any bugs, but if you find any, you should email
	the mailing list, yum@lists.baseurl.org, or consult bugzilla.

Nick Jacek															       yum-cron(8)
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