Reading The File Status

The important steps in Reading the file status

Open the File:

Use the fopen() function to open the file in read mode.

The file path and mode (e.g., "r") are required parameters.

Read File Properties:

Use the stat() function to retrieve information about the file.

The stat structure contains details such as file size, permissions, creation time, and modification time.

Print File Properties:

Extract relevant information from the stat structure.

Print details like file size, creation date, and modification date. 

#include <stdio.h>

#include <sys/stat.h>

#include <unistd.h>

#include <errno.h>

#include <string.h>

#include <time.h>

int main() {

char filename[50];

struct stat fileStat;

printf("Enter the filename:");

scanf("%s",filename);

// Call stat() to get file status

if (stat(filename, &fileStat) == -1) {

perror("Error");

return 1;

}

printf("Information for %s\n",filename);

printf("---------------------------\n");

printf("File Size: \t\t%ld bytes\n", fileStat.st_size);

printf("Number of Links: \t%ld\n", fileStat.st_nlink);

printf("File inode: \t\t%ld\n", fileStat.st_ino);

printf("File Permissions: \t");

printf((S_ISDIR(fileStat.st_mode)) ? "d" : "-");

printf((fileStat.st_mode & S_IRUSR) ? "r" : "-");

printf((fileStat.st_mode & S_IWUSR) ? "w" : "-");

printf((fileStat.st_mode & S_IXUSR) ? "x" : "-");

printf((fileStat.st_mode & S_IRGRP) ? "r" : "-");

printf((fileStat.st_mode & S_IWGRP) ? "w" : "-");

printf((fileStat.st_mode & S_IXGRP) ? "x" : "-");

printf((fileStat.st_mode & S_IROTH) ? "r" : "-");

printf((fileStat.st_mode & S_IWOTH) ? "w" : "-");

printf((fileStat.st_mode & S_IXOTH) ? "x\n" : "-\n");

printf("The file %s a symbolic link\n", (S_ISLNK(fileStat.st_mode)) ? "is" : "is not");

printf("Last access time: \t%s", ctime(&fileStat.st_atime)); 

printf("Last modification time: \t%s", ctime(&fileStat.st_mtime)); 

printf("Last status change time: \t%s", ctime(&fileStat.st_ctime));

return 0;

}

//*************************************************************

#include <stdio.h>

#include <sys/stat.h>

#include <time.h>

void printFileProperties(struct stat stats) {

    struct tm dt;

    // File permissions

    printf("\nFile access: ");

    if (stats.st_mode & S_IRUSR) printf("read ");

    if (stats.st_mode & S_IWUSR) printf("write ");

    if (stats.st_mode & S_IXUSR) printf("execute");

    // File size

    printf("\nFile size: %ld bytes", stats.st_size);

    // Creation time

    dt = *(gmtime(&stats.st_ctime));

    printf("\nCreated on: %d-%d-%d %d:%d:%d",

           dt.tm_mday, dt.tm_mon + 1, dt.tm_year + 1900,

           dt.tm_hour, dt.tm_min, dt.tm_sec);

    // Modification time

    dt = *(gmtime(&stats.st_mtime));

    printf("\nModified on: %d-%d-%d %d:%d:%d",

           dt.tm_mday, dt.tm_mon + 1, dt.tm_year + 1900,

           dt.tm_hour, dt.tm_min, dt.tm_sec);

}

int main() {

    char fname[100];

    struct stat stats;

    printf("Enter the file name: ");

    scanf("%s", fname);

    if (stat(fname, &stats) == 0) {

        printFileProperties(stats);

    } else {

        printf("Unable to get file properties.\n");

        printf("Please check whether '%s' file exists.\n", fname);

    }

    return 0;

}