size.c

linux unix 入门代码上,是关于初级入门的,经典代码

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

int
main(int argc, char *argv[])
{
	int ret;
	struct stat result;

	if (argc<2) {
		fprintf(stderr,"Usage: %s path\n",argv[0]);
		exit(1);
	}

	ret=stat(argv[1],&result);
	if (ret==-1) {
		perror("stat");
		exit(1);
	}

	printf("Sizeof %s = %d\n",argv[1],result.st_size);
	printf("  Actual space:%d\n",result.st_blocks*512);
	exit(0);
}