command

Today, I’ll share with you how to determine the size of the HTTP response header. The problem I encountered Last week one of my systems encountered the following error. When…

This article will show you how to compare floating point number in bash. Here are my shared experiences while working with the Linux system. Compare 2 common numbers Usually, we…

How to insert lines before or after pattern? In this article, I will show you how to use sed command to insert lines before or after the pattern. Use sed…

Working mechanism of wildcard characters, we call it pathname expansion. So how does the this expansion in Linux work? Example of pathname expansion Let’s try a simple example with the…

In this article, what will we learn about expansion in Linux? What does it do when we type the command on the terminal? Throughout this series, we only use a…

In this article, I will introduce you to the head command. We use head command to print first part of files. Sometimes, you don’t want to display the entire contents…

This article will guide you to the grep command. How to use grep to print lines match a pattern. The grep command is an extremely powerful command in Linux, especially…

This article will introduce wc command. You can use wc command to count the number of lines, words and bytes in the file. Wc command syntax There are 2 ways…

In this article, we will talk about using the uniq command to delete duplicate lines. This is one of the commands that is also used quite a lot while working…

This article will talk about sort command, how to use sort command to sort pipeline data? In the pipeline article, you already know the power when combining commands into a…