리눅스 - 파일의 정보 출력(stat, lstat)

1. print_fileinfo.h

#include <sys/stat.h>

int print_FileInfo(struct stat stBuf);

​

2. print_fileinfo.c

 

#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <stdio.h>
#include "print_fileinfo.h"

int print_FileInfo(struct stat stBuf)
{
	printf("File type :                    ");
		switch (stBuf.st_mode & S_IFMT)
		{
		case S_IFBLK: printf("block device\n");			break;
		case S_IFCHR: printf("character device\n");		break;
		case S_IFDIR: printf("directory\n");			break;
		case S_IFIFO: printf("FIFO/pipe\n");			break;
		case S_IFLNK: printf("symlink\n");				break;
		case S_IFREG: printf("regular file\n");			break;
		case S_IFSOCK: printf("soket\n");				break;
				
		default:		printf("unknown?\n");			
			break;
		}
		printf("I-node number:               %ld\n", (long)stBuf.st_ino);
		printf("Mode:                        %lo (octal)\n", (unsigned long)stBuf.st_mode);
		printf("Link count:                  %ld\n, (long)stBuf.st_nlink");
		printf("Ownership:                   UID=%ld   GID=%ld\n", (long)stBuf.st_uid, (long)stBuf.st_gid);
		printf("Preferred 1/0 block size:    %ld bytes\n", (long)stBuf.st_blksize);
		printf("File size:                   %lld bytes\n", (long long)stBuf.st_size);
		printf("Blocks allocated:            %lld\n", (long long)stBuf.st_blocks);
		printf("Last status change:          %s", ctime(&stBuf.st_ctime));
		printf("Last file access:            %s", ctime(&stBuf.st_ctime));
		printf("Last file modification:      %s", ctime(&stBuf.st_ctime));

		printf("\n");

		return 0;
}

}

​

3. stat.c

}

#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include "print_fileinfo.h"

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

	if (argc != 2)
	{
		fprintf(stderr, "Usage: %s <pathname>\n", argv[0]);
		return -1;
	}

	if (stat(argv[1], &stBuf) == -1)
	{
		fprintf(stderr, "lstat");
		return -1;
	}

	print_FileInfo(stBuf);

	return 0;
}

​

 

4. lstat.c

 

#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include "print_fileinfo.h"

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

	if (argc != 2)
	{
		fprintf(stderr, "Usage: %s <pathname>\n", argv[0]);
		return -1;
	}

	if (lstat(argv[1], &stBuf) == -1)
	{
		fprintf(stderr, "lstat");
		return -1;
	}

	print_FileInfo(stBuf);

	return 0;
}

​

​

​

결과 화면

​