David Cao

David Cao

David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.

4 ways to fix ip: command not found

The “ip” command is a Linux command used to configure and manage network interfaces on a Linux system. It can be used to set various network interface parameters, such as IP addresses, netmasks, and gateway addresses. It can also be…

Mastering Linux Export Command

The export command is a bash shell BUILTIN command. It tells the Linux shell to make the variables available to the child processes. In Linux, the export command is usually used to change local variables to environment variables. We can…

What is PATH variable in Linux and how it works

The PATH variable is a list of directories that contains executable programs. It controls where your shell will look for commands on your system. When you enter a command in the terminal, such as grep, ls, or echo, the shell…

4 ways to check network usage in Linux

By keeping an eye on your network usage, you can make sure that your system is running smoothly and efficiently. If you’re using Linux, there are a few different ways that you can check your network usage. In this blog…

What is sparse file and how to check it?

A sparse file is a type of computer file that has holes in it. These holes don’t contain actual data. A spare file only allocates disk space for the data that are actually stored. This allows a sparse file to…