LINUX5

//5) write a c program which lists all  the files of the current working directory which contains hard link files

/*

THEORY:

PRE_WORK:

1)CREATE A DIRECTORY USING mkdir COMMAND

2)CHANGE INTO THE DIRECTORY CREATED

3)CREATE FILE'S IN THE DIRECTORY USING cat  COMMAND

4)CREATE THE HARD LINK's FOR THE FILES (eg:ln filename(created file name in 3))

 

 PROGRAM:

*/

#include<stdio.h>

#include<stdlib.h>

#include<dirent.h>

#include<sys/stat.h>

main(int argc,char* argv[])

{

     DIR *dp;

     struct dirent *dirp;

     struct stat sb;

     int i;

     char str[40];

     if((dp=opendir(" "))==NULL)

     {

           printf("directory open error\n");

           exit(2);

     }

     while((dirp=readdir(dp))!=NULL)

     {

           if(stat(dirp->d_name,&sb)==-1)

           {

                perror("stat");

                exit(2);

           }   

           if(strcmp(".",dirp->d_name)!=0&&

strcmp("..",dirp->d_name)!=0&&sb.st_nlink>=2)

           {

                printf("%ld--%s\n",dirp->d_ino,dirp->d_name);

           }

     }

     exit(0);

}

/*

compilation:

gcc 5.c

execution:

 ./a.out

output: