troubleshoot – POFTUT

How To Use Linux dmesg Command To Print System Logs?

dmesg is used to print and control kernel ring buffer. This explanation may be confusing for the most of the readers. Here simplified explanation. dmesg provides logs for troubleshoot, diagnose or save which is created by Linux kernel. It provides low level messages which is not logged by other subsystems. Provided Information Type dmesg command … Read more

Debugging Linux Bash Scripts

[rps-include post=6835] While writing bash scripts we generally expects some results and provide these results to other scripts. But things goes not well as we expect. So we need to see under the hood and what is happening while script is running. Debugging is inspecting bash scripts to see what is wrong with script or … Read more

Linux ping Command Tutorial With Examples

Ping is one of the most used tool for network diagnostics. When internet is not working, can not access file shares etc we will firstly ping command. Ping is one of the most known tool in the IT area. Ping actually uses ICMP packets to get information about network status. In this tutorial we will … Read more