TO DEMONSTRATE EXECLP ( ) FUNCTION

AIM:

To write a shell program to implement the execlp() function.

ALGORITHM:

1.      Start the program

2.      Obtain the pid value using fork() function.

3.      If pid <0 , then print fork failed.

4.      Else if pid = 0,execlp() function will invoked.

5.      Else print child process complete.

6.      Terminate the program.

PROGRAM:

#include<stdio.h>

main(int argc,char *argv[])

{

int pid;

pid=fork();

if(pid<0)

{

fprintf(stderr,”Fork failed \n”);

exit(-1);

}

elseif(pid==0)

{

execlp(“/bin/ls”,”ls”,NULL);

}

else

{

wait(NULL);

printf(“Child Complete”);

exit(0);

}

OUTPUT:

a.out fib.sh mov.c len.sh str.sh fact.sh copy.c cat.c even.c odd.sh child complete

RESULT

Thus the execlp functions were implemented