How To Check Health Status Of A Linux System [Updated]?

Is Your System Health Status Tested/Checked Today... ????

#!----Here is a script to check the basic health status of a Linux system---#!

   

[[ Updated on 9th Sep 2024]]

This script has been tested to run successfully on RHEL9/8/7/6, SLES/SLED 15/12/11, Ubuntu24/22/18/16, Alma, Rocky, Boss6(Debian) etc,.x86 and x86_64 bit architectures. It may work on other variants as well, however, not tested. These tests were run on virtual machines.

This is a small, light-weight script which makes use of native Linux utilities to get the required details and doesn't need much space. This script could be added as a cron job to regularly get system details triggered via an email as desired. The script has been successfully tested to work on most popular Linux distributions. One may alter or change the script to get the desired function or task done.



Details of the script:

Name Of The Script →  health-check.sh

Build To Run On → RHEL 9/8/7/6.x /SLES 15/12/11 , CentOS, Roky8/9, Alma89, Ubuntu24/22/18/16 x86/x86_64 architecture

Who Can Run This Script →  Root User Or sudo user

Depends On →  "sysstat" package & Other Native Commands

Output → This Script would dump the details on the console


Following checks would be performed:

→ Mounted File Systems

→ Read-only File System If Any

→ File Systems Disk Usage

→ I-node Usage

→ Zombie Processes If Found

→ RAM 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. Use the link provided below to download the script.

Change the file permissions to executable if required. You could run the below command to turn on the execute bit for root user:

# chmod u+x health-check.sh

If you are unable to download and move this script file to your Linux system then you may need to copy the complete contents of the file as it is and paste into your file, set execute bit and run it later.

Errors while executing script:

If there are any errors as listed below:

- health-check.sh: line 12: $'\r': command not found

- syntax error near unexpected token `||' or "-bash:

- ./health-check.sh: /bin/bash^M: bad interpreter: No such file or directory

then it could due some character conversion or interpretations when file is copied to Unix/Linux shell, and to resolve this run the command:

# sed -i -e 's/\r$//' health-check.sh

All the best!


More advanced version of this script file which can scan complete Linux system and pull out all hardware details is available as 'hwlist' package. Refer this blog page for more details:

https://www.simplylinuxfaq.com/p/how-to-find-hardware-details-in-linux.html

Download health-check.sh

You may prefer to scan the download and then execute it. One could also perform git clone using the command "git clone https://github.com/SimplyLinuxFAQ/health-check-script.git".

View/read the release file:

https://github.com/SimplyLinuxFAQ/health-check-script/releases

View/read the script file here:

https://github.com/SimplyLinuxFAQ/health-check-script/blob/master/health-check.sh

View/read a sample output file produced by running 'health-check.sh' script file :

https://github.com/SimplyLinuxFAQ/health-check-script/blob/master/sample%20output%20file