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After several iterations, Docker Registry was upgraded from version 1 to version 2. Especially being new, some commands needed to be included or adequately documented on its official documentation website. An example is getting a list of im...

While it is highly recommended to secure your registry using a Transport Layer Security (TLS) certificate issued by a known Certificate Authority (CA), we have the option of using our insecure registry over an unencrypted Hypertext Transfer...

When developing applications, we usually use database management systems such as PostgreSQL, MySQL, MongoDB, etc. to record application data. Docker helps us run an instance of these application database management systems. This helps save...

This short article introduces the nohup command and the control operator to run Linux processes in the background through Bash. In addition, we will further study the key differences between nohup and . Running Linux Processes in the Backgr...

Sometimes when dealing with files, we may need to place the text file in a variable in order to perform some necessary operations on the file. In Bash Script, this is a very easy task that does not require more than two lines of code. This...

In this article, we will explain how to increment a variable in bash. We will also learn about different types of increment operators used in bash scripting in Linux. Let's start with shell programming in Linux and learn how to increment a...

In this article, we will learn about bash variable scope in Linux. We also learned how to declare variables in bash scripts in Linux operating system. Furthermore, we will see different types of variables and how to access local and global...

In this article, we will learn how to modify global variables within a Bash function. Modifying global variables inside a function in Bash If you declare your variables in a script, every variable in Bash is global by default, which means i...

This article is about using variables in Bash scripts and how to insert these variables in Bash scripts. Variables in Bash Scripts Every programming language has variables with specific data types. Similarly, Bash script also allows us to u...

Sometimes, we need to check if a variable contains a value. This is important when working on projects that contain user input to be run. In Bash scripting, we can check in many ways whether a variable contains a value. This article will sh...

This article explains how to wait for background processes in Bash. Bash waits for background processes The wait command in Bash can be used to wait for all background processes to complete. This command will wait for the process and return...

When you execute a command in the terminal, you need to wait for the command to finish executing. This is called the foreground process. However, some advanced programs need to run in the background. In Bash scripts, there is an easy way to...

This article will explain how to change users in Bash. Bash Change User There are multiple ways to change users in Bash. We can use su command or sudo command to change users directly or use methods to switch to root user. To change users i...

This article explains how to find all files with an extension in Bash. Find all files with extension in Bash Finding files with a specific extension in Bash is a simple operation. We can use the find command with the -name option to find fi...

This article explains how to recursively loop through directories in Bash. Looping through directories recursively in Bash When dealing with different directories, it is often necessary to traverse the directories. We can use similar comman...