Environment variables are key-value pairs that store information about the system environment. In Linux scripting, several built-in environment variables provide useful information and configuration ...

Simply put, a Shell Script is a program that is run by a UNIX/Linux shell. It is a file that contains a series of commands which are executed sequentially as if they were entered on the command line ...

Signal handling is an essential aspect of Linux scripting, allowing scripts to respond to events such as interrupts or errors. The trap command is a powerful tool for managing signals and executing ...