With these commands you can find out total CPU utilization, individual CPU utilization (for SMP machines), your system's average CPU utilization since the last reboot, determine which process is eating up your CPU (s) etc. This is very simple and straightforward one line script. # from multiple Linux servers and output the information on a single server # in html format. CPU – These are percentages of total CPU time. But, there is more to explore here.. Monitorix. It will trigger an email when your system reaches 80% CPU utilization. → SWAP Utilization → Processor Utilization → Current Load Average → Most recent reboot and shutdown stamps → Top 5 memory & CPU consuming resources Let’s Download And Execute: Now, one could download and run the script to get the basic health check of a Linux system. If you want to get more information about the CPU utilization in the mail alert. How to Monitor CPU Utilization using Shell Script and Get an Email Alert When CPU Usage is HIGH. # ps -eocomm,pcpu | egrep -v ' (0.0)| (%CPU)' kworker/0:1H 0.3 stress 99.9 stress 46.7 stress 99.9 kworker/u8:2 0.3 kworker/u8:1 0.3. Check Top Processes sorted by RAM or CPU Usage in Linux The following command will show the list of top processes ordered by RAM and CPU use in descendant form (remove the pipeline and head if you want to see the full list): # ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head The ps command command displays every process (-e) with a user-defined format (-o pcpu). You can install like so: To display complete CPU information, including per CPU clock-speed and CPU max speed (if available), use the -Cflag as follows: How to automate day to day activities using shell scripts? If you have any issues with this script please add your comment with error details we will try to help you out. This will instantly gives you an idea what is going on your system. Below is the script which will collect CPU Utilization and store into file and does not apply any validation, But I am not Ok with above script which does not apply any validation the same script i have modified, can validate and send as an email alert when it is CRITICAL, Copy above script and paste in 1cpuload.sh file and run dos2unix filename which will convert from windows format to Unix format to avoid errors while executing shell script, Note: Before running the CPU Utilization Monitoring Shell script Change EMAILADDRESS. Updated August 19, 2017. wa: Time spent waiting for IO. The purpose of this article is to exp… Your email address will not be published. More ways to check CPU utilization There are a few more tools we can use to check CPU usage, and they’re contained in the sysstat package. I have stored all servers hostname in … The 5 indicates that it should display every 5 seconds. Powershell script to monitor CPU utilization and notify on a threshold breach Here is a simple powershell script which will take a list of servers as input, monitors CPU load and sends email notifications incase of threshold breach (which is set in script). If you only have few systems and want to monitor them then writing a small shell script can make your task very easy. However, it does come with features that allow you to test and benchmark different parts of your system, including the CPU, memory, and file throughput. There are many times when using native Linux/Unix tools can be very useful for analzing performance issues, especially high CPU or server hangs. Most Linux kernels provide a virtual /proc filesystem, providing an interface to various internal data structures. It’s not limited strictly to CPU usage, but you can use the -u option to track CPU performance. In this tutorial we have added two shell script to monitor Memory utilization on Linux system. (user time, including nice time) sy: Time spent running kernel code. Inxiis a powerful command line system information script intended for both console and IRC (Internet Relay Chat). Probably one of the most used commands on Linux would be top. Command to check top CPU consuming process. We have already published Shell script to Monitor CPU Utilization and get an email when it is CRITICAL in Usage Check out Article. Task. In this tutorial we have added two shell script to monitor CPU utilization on Linux system. If you want to check those, navigate to the below link. When the system reaches the given threshold then it will trigger a mail to corresponding email id. It monitors everything such as CPU utilization, Memory utilization, swap utilization, disk space utilization and much more. How to Check System Configuration and Hardware Information on Linux, Two Methods To Create Bulk Users In Linux, How to Check Password Expiration Date for All Users on Linux. Enable SNMP readonly community Share We can simply sort the current executing processes with its CPU and Memory conception ratio. If you want to get CPU utilization percentage through mail alert when the system reaches the given threshold, use the following script. A lightweight open-source utility to monitor the Linux server.