APUE 学习笔记(六) 进程控制

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char* argv[])
{
    extern char** environ;
    for (int i = 0; i < argc; ++i) {
        fprintf(stdout, "argv[%d] : %s\n", i, argv[i]);
    }
    for (char** ptr = environ; *ptr != NULL; ++ptr) {
        fprintf(stdout, "%s\n", *ptr);
    }
    return 0;
}

clock_t times(struct tms *buf);
struct tms {
    clock_t tms_utime;    /* user time */
    clock_t tms_stime;    /* system time */
    clock_t tms_cutime;  /* user time of children */
    clock_t tms_cstime;  /* system time of children */
};