Category: Linux

Regular expressions (regex or regexp) are powerful patterns used for matching and manipulating text strings. In the context of the shell, regular expressions are often used...

The grep command in Linux is a powerful and versatile tool used for searching and matching patterns within files or streams of text. The name “grep”...

In Linux, system calls are the interface between user-space applications and the kernel. They allow processes to request services and interact with the underlying operating system....

File compression in Linux is the process of reducing the size of files or directories to save disk space and facilitate faster data transfer. There are...

Linux supports various file system types, each designed for specific use cases and requirements. Here are some of the most commonly used file system types in...

Piping in Linux is a powerful concept that allows you to take the output of one command and use it as the input for another command....

File redirection in Linux is a way to control the input and output streams of commands. It allows you to change where a command reads its...

Remote copy in shell scripting refers to the process of copying files or directories from one system to another over a network. This can be achieved...

SSH, or Secure Shell, is a cryptographic network protocol that provides a secure way to access and communicate with remote servers over an unsecured network. It...

In shell scripting, you can perform numerical operations using various tools and techniques. Here are some common ways to work with numbers in a shell script:...