Problem in Runing Threads in C (solaris)

I have made the following program, but the thread is not running. Output says thread created but the thread function (which i want to call so as to perform the deletion of file from a path) is not called. neither it has displayed "Hello" as output. Please let me know how to run the thread function "am".



#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
void* am(void* myID)
{
printf(" Hello : ");
system("rm /home/user/download/hero.txt");
}
int main(){
pthread_attr_t attr;
pthread_t tid;
int status;
int i;
status=pthread_create(&tid,NULL,am,(void*)1);
if (status) {
printf("\n Error Initialization ");
}
status=pthread_attr_init(&attr);
if (status) {
printf("\n Error Creating thread ");
}
else
{
printf("\n Thread Created");
}
pthread_join(tid,NULL);
i++;
}


Output:
Error Initialization
Thread Created