Using the program shown, explain the circumstances under which the line of code marked printf(“LINE J”) will be reached. #include #include #include int main(){pid_t pid;/* fork a child process */pid = fork();if (pid lt; e) { /* error occurred */fprintf(stderr, "Fork Failed");return 1;}else if (pid == 0) { /* child process */execlp("/bin/1s","1s",NULL);printf("LINE J");else { /* parent process *//* parent will wait for the child to complete */wait (NULL);printf("Child Complete");return e;}

Answered: #include #include #include cunistd.h>…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Using the program shown, explain the circumstances under which the line of code marked printf(“LINE J”) will be reached.

#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
int main()
{
pid_t pid;
/* fork a child process */
pid = fork();
if (pid lt; e) { /* error occurred */
fprintf(stderr, "Fork Failed");
return 1;
}
else if (pid == 0) { /* child process */
execlp("/bin/1s","1s",NULL);
printf("LINE J");
else { /* parent process */
/* parent will wait for the child to complete */
wait (NULL);
printf("Child Complete");
return e;
}

Expert Solution

Step 1

Given program,

#include<sys/types.h>
#include<stdio.h>
#include<unistd.h>

int main()
{
pid_t pid;

/* fork a child process */
pid = fork();

if (pid lt;0) { /* error occured */
fprintf(stderr, "Fork Failed");
return 1;
}
else if (pid ==0) { /* child process */
execlp("/bin/ls", "ls", NULL);
printf("LINE J");
}
else { /* Parent Process */
/* Parent will wait for the child to complete */
wait (NULL);
printf("Child Complete");
}

return 0;
}

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