In computer science, Command line interpreter (CLI) refers to a program that allows users to enter a command. It then reads and interprets the input and executes the input in the operating system. CLI accepts commands from a keyboard in the form of a text line.
It was widely used until the 1970’s. Now, graphical user interfaces and menu-driven interfaces have replaced command-line interpreters. However, it is useful than GUI in some cases.
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Systems with CLI
Command Prompt is the primary command-line interpreter in most of the windows operating system. Windows Power Shell is the most advanced command-line interpreter. It is available in the recent version of windows along with Command Prompt.
Recovery Console acts as a Command-line interpreter in Windows XP and Windows 2000. However, it mainly performs various tasks related to troubleshooting and system repairing. The terminal is another CLI that is used in macOS operating system. However, some programs contain both the CLI and GUI.
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Advantages and Disadvantages
Like other tools, Command line interpreters also comes with some advantages and disadvantages.
- Tasks can be done quickly with such interpreter if one can remember the commands.
- One can maintain previously executed commands for monitoring.
- A Command in CLI uses very less RAM and CPU cycle.
- It comes with a large range of command and queries that are available for different operations.
- One can combine command to create a script that can run several operations.
- The users need to remember a large number of commands for performing the tasks.
- For new users, it is confusing and challenging to understand.
- It is complicated to remember the exact syntax for the commands.
However, not all the command line interpreters are the same. It understands a particular command based on the programming language and syntax. So, command-line interpreters may not work the same under different environments.
Even the syntax plays an important role. The command-line interpreter is very sensitive in such cases. Therefore, a mistyping can lead to the misinterpretation of a command. Hope you have liked the article and found it useful.