How to write a Shell script that automatically kills more CPU resources

This article mainly explains "how to write a Shell script that automatically kills a lot of CPU resources". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to write a Shell script that automatically kills more CPU resources.

The code is as follows:

#! / bin/bash

# March-13-2006

# CPUuse trigger script by Noel

#

# bash code to watch a running program's CPU usage.

# if it's above a set value, it will auto send an email.

# You will need to set a Cron job to run this script every xx minutes

#

# Set some needed things:

#

ProcessToWatch= "convert" # in my case I need to watch convert

EmailAddress= "root@host" # this is my main emailaddress

TriggerValue=90 # if the CPU use is above 90% send an email. DO NOT USE a DOT or COMMA!

TempFileName=tmp-cpu # some name of the temp file for the ps, grep data

Ps auxww | grep "$processToWatch" | grep-v grep > / tmp/$tempFileName

Export LINE

(

Read LINE

While [- n "$LINE"]

Do

Set $LINE

Read LINE

If [$(echo "$3" | sed-e's /\. [0-9] * / / g')-gt $triggerValue]; then

Mail-s "CPU message alert for: $processToWatch" $emailAddress