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Linux-C-Notes/C13-Linux系统编程/process_basic/few.c
2024-05-14 07:39:34 +08:00

42 lines
582 B
C

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
/**
* @brief few: folk, execl, wait
* @details
*
* @param argc
* @param argv
* @return int
*/
int main(int argc, char **argv)
{
pid_t pid;
puts("Begin!");
fflush(NULL);
pid = fork();
if (pid < 0)
{
perror("fork()");
exit(1);
}
if (0 == pid) // child
{
execl("/bin/date", "date", "+%s", NULL);
perror("execl()");
exit(1);
}
wait(NULL);
puts("End!");
exit(0);
}