--%>

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 : Explain Dynamic Language Runtime

    Explain Dynamic Language Runtime (DLR) briefly?

  • Q : What is Pointer Arithmetic Pointer

    Pointer Arithmetic: C and C++ provide the ability to modify a pointer’s target address with arithmetic operations. This is used, for example, to index arrays. MyObject* P = ...

    Q : Define Preempt Preempt: It is the

    Preempt: It is the presently executing thread might be preempted, or forced to give up control, by a higher priority thread which becomes eligible to run throughout its time slice.

  • Q : Protocol stack of XML Web Services

    Explain the protocol stack of XML Web Services.

  • Q : Assembly program that reads in five

     I need to write assembly program that reads in five numbers from the user. The user can then be prompted for one of the following pieces of information to be computed and returned: . the mean of the five numbers; . the largest number in the set; . the smallest number in the set; . t

  • Q : Introduction to C plus Give a brief

    Give a brief Introduction to C++. Also write its features.

  • Q : Explain Declaration and initialization

    Declaration and initialization: It is a statement in which a variable is declared and instantly given its initial value. Three illustrations of declaration and initialization are as follows:     int

  • Q : Explain the term Latest XHTML

    Explain the term Latest XHTML Specification?

  • Q : Explain Polling Polling : It is the

    Polling: It is the process of repeatedly testing until a situation becomes true. Polling can be incompetent when the time between tests is little compared with the time it will take for the condition to become true or right. A polling thread must slee

  • Q : C Sharp console application Write a

    Write a simple C# console application to consume the service to generate uniform random numbers.