Linux operating system allows users to create commands and execute them over the command line. To create a command in Linux, the first step is to create a bash script for the command. The second step ...

A program (binary, or executable) is a file on disk somewhere, in a recognized format. Common formats include ELF on Linux, ...

Learn what a shell "builtin" on a Linux system is, as well as what commands identify builtins and allow you to retrieve useful information about your working environment. and how to determine if a ...

Linux systems support a number of file editors – like vi, vim, neovim, ne, GNU Emacs etc. But you can also install an editor that allows you to view the contents of and make changes to binary ...

In other words, if you have an executable file in a directory that is configured to be in your PATH, you can run that executable from anywhere in the Linux file structure.

You could even embed an executable file in a script — even another script — and then execute that script which might unpack another script. It boggles the mind.