ch3-pid (Process ID)

Chapter_3

system

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print-pid.c     ALP, p. 50-51

#include <stdio.h> // for printf()
#include <unistd.h> // for getpid(), getppid()

int main()
{
printf ("The process ID is %d\n", (int) getpid());
printf ("The parent process ID is %d\n", (int) getppid());

return 0;
}

/*
gcc print-pid.c -o print-pid
./print-pid
The process ID is 75713
The parent process ID is 75593

./print-pid
The process ID is 77557
The parent process ID is 75593
*/

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Chapter_3

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