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What is Comand Line Interface (CLI)?

Definition - What does Command Line Interface (CLI) mean?

        Command line interface (CLI) is a text-based interface that is used to operate software and operating systems while allowing the user to respond to visual prompts by typing single commands into the interface and receiving a reply in the same way.
CLI is quite different from the graphical user interface (GUI) that is presently being used in the latest operating system

Windows Example

C:\>npm install mysql

Mac OS Example

>npm install mysql

Basic Linux CLI Commands:

CommandDescription
lsList the directory (folder) system.
cd pathnameChange directory (folder) in the file system.
cd ..Move one level up (one folder) in the file system.
cpCopy a file to another folder.
mvMove a file to another folder.
mkdirCreates a new directory (folder).
rmdirRemove a directory (folder).
clearClears the CLI window.
exitCloses the CLI window.
man commandShows the manual for a given command.

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