Blogs

Last time, I wrote about introducing the Ansible tool and its installation. In this article, I'd like to delve into how to actually run...

What is permission? Directories and files on Linux have defined permissions. Permissions are the rights to manipulate directories and...

Related terms and commands What do the symbols on the Linux command line mean？ I’m going to explain each of the symbols' meanings....

What is goacl The goacl is a CLI tool written in Golang. You can view a list of AWS security groups and add rules for specific groups....

Many of you may use “ll” instead of the “ls” command. In this article, I’m going to explain what “ll” is and what you should know about...

I’m going to introduce Linux commands and options that are smartly used. For example, $ ps auxwwf | grep httpd | grep -v "grep” This one...

Hello! I’m going to talk about the vi command which is for editing files in Linux. There are so many options…! The vi command is a...

I’m writing this article for you who might be tired from working so hard. I hope this will help you to refresh a bit! Environment cat...

The df command is a command to see how much free disk space is left and manage disk space. Since a lot of data remains in the disk day by...

Hello, Recently I had a chance to deal with symbolic links when I had to renew an SSL certificate. Therefore, when I was doing research...

Hello! I recently realized that how to check global IP addresses is slightly different depending on the person. So I’d like to talk about...

This article explains the command AWK, which is used in conjunction with the log check. What is AWK Command? When processing multiple...

Greetings to all! Jon here from Beyond GTA, and today I am going to share some basic knowledge about cron, which is a very common term...

If you are a server engineer or a regular Linux user, you are most likely familiar with the command "top", which shows the Linux...

Q: Which command displays information about loaded kernel modules? (Select all) lsmod 〇 modprobe cat /proc/modules 〇 cat /proc/modprobe...

Hi everyone! This is Jon from Beyond GTA. Today, I would like to share one of the most useful commands in Linux. As you can see from the...

grep is a great command on Linux and you have numerous chances to use the command when you use Linux. However, grep has lots of options...