Shell Scripting

noun — “telling computers what to do… very firmly… one line at a time.”

Shell Scripting is the practice of writing small programs, called scripts, that instruct a command-line shell how to execute a sequence of commands automatically. These scripts act as glue between tools, turning individual commands into repeatable workflows. If typing the same commands more than twice makes you sigh, Shell Scripting has already been invented for you.

Boolean Logic

/ˈbuːliən ˈlɑːdʒɪk/

noun … “Algebra of true/false values.”

Boolean Logic is a system of mathematics and reasoning that operates on binary values—typically true (1) and false (0)—to perform logical operations. It is the foundation of logic gates, digital circuits, and computer programming, enabling decision-making, conditional execution, and binary computation. Boolean expressions combine variables and operators such as AND, OR, NOT, NAND, NOR, XOR, and XNOR to define logical relationships.