command language
Học thuậtThân thiện
Definition
- Noun:
- A source language consisting of procedural operators that invoke functions to be executed: A command language is a type of computer programming or scripting language where the primary instructions are commands. These commands are procedural operators that tell a system to perform specific, predefined functions or tasks.
Usage
- A command language is used to control the operation of a computer system, an application, or a utility program by issuing a sequence of commands.
- It is often employed in operating system shells, job control languages, and for automating repetitive tasks through scripts.
Examples
- Noun:
- The system administrator wrote a script in the command language to automate the backup process.
- DOS and Unix shell scripts are classic examples of using a command language.
- Understanding the command language is essential for efficient interaction with the mainframe.
Advanced Usage
- "Job control language (JCL)": A specific type of command language used to control batch processing on mainframe systems.
- She needed to learn JCL, the command language for the IBM mainframe, to submit her jobs.
- "Shell scripting": The practice of writing sequences of commands for a shell (a command-line interpreter) to execute.
- Automating file management is easily done through shell scripting in a Unix command language.
Variants and Related Words
- Command interpreter (n): A program that reads and executes commands issued by the user in a command language. Often called a shell.
- The command interpreter parsed the command language instructions and executed the program.
- Scripting language (n): A broader category that often includes command languages but may also refer to more full-featured languages for automating tasks.
- While Python is a powerful scripting language, traditional batch files use a simpler command language.
Synonyms
- Control language: A language used to direct the operations of a system.
- Job control language (JCL): Specifically for batch job control on mainframes.
- Shell language: The command language specific to an operating system's shell.
Related Phrases
- Command-line interface (CLI): A user interface where the user interacts with the system by typing commands in a command language.
- He preferred the command-line interface because he was fluent in its command language.
- Batch file: A script file containing a series of commands in a command language for a command-line interpreter.
- She created a batch file to automate the software installation using the Windows command language.
Noun
- a source language consisting of procedural operators that invoke functions to be executed