Concepts

The cat command is a computing command that allows users to view the contents of files. It is commonly used in Linux and other Unix-like operating systems. The cat command …

The chmod command is a computing command used in the Linux operating system. The command stands for “change mode” and allows users to change the permissions of files and directories. …

In computing, an operator is a symbol that tells a program to perform a particular operation on one or more operands. For example, the plus operator (+) tells a program …

In computing, an associative array, map, symbol table, or dictionary is an abstract data type composed of a collection of (key, value) pairs. Each possible key appears at most once …

A multi-dimensional array is an array of arrays. It is used in computing to store data in a tabular format. In most programming languages, a multi-dimensional array is implemented as …

A function is a piece of code that is written to perform a specific task. Functions are usually written in a programming language and can be called from other parts …