--%>

Purpose of exec functions

Specify the purpose of exec functions?

E

Expert

Verified

Whenever a process calls one of the exec functions, that particular process is fully replaced through the new program. New program starts its execution from the main function. The processed does not alters across an exec since a new process is not created. However, this function substitutes the current process with the new program from the disk.

   Related Questions in Programming Languages

  • Q : Ways to select HTML Tag Instances

    Explain the different ways in order to select the HTML Tag Instances.

  • Q : Program is prone to deadlock when

      Give a brief introduction about the operation of your program and show that you understand the idea behind threads and mutual exclusion variable. Why do we need to use mutual exclusion to control the access of the three global variables? What is the potential p

  • Q : What is Class body Class body : It is a

    Class body: It is a body of class definition. The body collects the definitions of a class's members that is, methods, fields and nested classes.

  • Q : What are the valid and invalid XHTML

    What are the valid and invalid XHTML element names?

  • Q : Explain a quality and metrics reporting

    What opinion would you provide to someone who asked you where to begin to introduce to their company a quality and metrics reporting program?

  • Q : What is a Software What is a Software :

    What is a Software: It is a program written to run on the computer.

  • Q : What is Parsing Parsing : Generally

    Parsing: Generally applied to the action of a compiler in examining a program source file for syntax errors. This is too employed more broadly to mean the analysis of the structure of input.

  • Q : Tower of Hanoi Puzzle program using C#

    here I attached the assignment and examples of how can you do this assignments. I will post others in the next week as well.

  • Q : What is Hash code Hash code : It is a

    Hash code: It is a value returned by a hash function. A hash code can be employed as an index into a random-access data structure, offering a proficient mapping between an object and its position. Employed by classes like HashMap.

  • Q : What is Virtual desktop Virtual desktop

    Virtual desktop: The name employed to explain a user's graphical working area in a window manager. The name arises in the early days of graphical user interfaces whenever it was thought that such would lead to `paperless offices'. This was anticipated