Command Line Arguments for C Programming MCQ Practice

A command-line interface (CLI) processes commands to a computer program in the form of lines of text. The program which handles the interface is called a command-line interpreter or command-line processor. Operating systems implement a command-line interface in a shell for interactive access to operating system functions or services. Such access was primarily provided to users by computer terminals starting in the mid-1960s, and continued to be used throughout the 1970s and 1980s on VAX/VMS, Unix systems and personal computer systems including DOS, CP/M and Apple DOS

Today, users rely upon graphical user interfaces and menu-driven interactions. However some programming and maintenance tasks may not have a graphical user interface and may still use a command line

Alternatives to the command line interface include text user interface menus (for example, IBM AIX SMIT), keyboard shortcuts, and various desktop metaphors centered on the pointer (usually controlled with a mouse). Examples of this include the Microsoft Windows, DosShell, and Mouse Systems PowerPanel. Command line interfaces are often implemented in terminal devices that are also capable of screen-oriented text user interfaces that use cursor addressing to place symbols on a display screen

Programs with command-line interfaces are generally easier to automate via scripting

Many software systems implement command line interfaces for control and operation. This includes programming environments and utility programs

C allows a program to obtain the command line arguments provided when the executable is called, using two optional parameters of “main()” named “argc (argument count)” and “argv (argument vector)”

The “argc” variable gives the count of the number of command-line parameters provided to the program. This count includes the name of the program itself, so it will always have a value of at least one. The “argv” variable is a pointer to the first element of an array of strings, with each element containing one of the command-line arguments

These questions will give you basic idea for Examination Preparation and/or interview on Command Line Arguments for C Programming.

Please Note:

1. These questions are only for practice and understanding level of knowledge only. It is not necessary that these questions may or may not appear for examinations and/or interview questions
2. In this practice test, because of large amount of questions (around 32 questions) some of questions may have repeated
3. I had to put as 70% pass rate because there may also be wrong answers from my side