Unix system calls 3

Unix System Calls

(stat)

---

// Unix system calls

// stat

#include <unistd.h>

#include <stdio.h>

#include <sys/stat.h>

#include <sys/types.h>

void main(int argc, char **argv)

{

if(argc != 2)

printf(“Usage error: Invalid number of arguments.”);

struct stat fs;

if(stat(argv[1],&fs) < 0)

printf(“Usage error: File / directory does not exist.”);

printf(“Information for %s\n”,argv[1]);

printf(“File Size: \t\t%d bytes\n”,fs.st_size);

printf(“File inode: \t\t%d\n”,fs.st_ino);

printf(“File mode: \t\t%d\n”,fs.st_mode);

printf(“user ID of file owner: \t%d\n”,fs.st_uid);

printf(“File last access time: \t%d\n”,fs.st_atime);

}