UNIX program to create a file and place it in directory and remove the file from the directory

                                                        /createfile.c*/

#include<stdio.h>
#Include<unistd.h>
#include<stdlib.h>

void main()
{
   int fd;

   if((mkdir("mydir",0777))=-1)   /* mydir is a new directory name to be created */
    {

      printf(|\n error in creating a directory");

      exit(1);

    }

    if((creat("mydir/raj",0777))=-1)          /* create a file named raj in directory mydir */
      {

         printf("\n error in creating a file");

         exit(1);

       }

          sleep(60);      /* the next statement get executed after 60 seconds */

          unlink("mydir/raj");      /* remove the file raj in directory mydir

    }



/* when executing this program open two terminals and in first terminal execute the program*/
/* open another terminal and check the existence of the file raj in directory mydir */

TERMINAL1
home/anil/~ cc createfile.c

/home/anil/~ ./a.out
-

TERMINAL2
/home/anil/~ cd mydir

/home/anil/mydir/~ ls

raj


                                          signals

directory handling system calls, unix prorgam to create a file and then removes a file , creat system call, mkdir system call, unlink system call, UNIX program to create a file in the directoy, UNIX program to create a new directory, Unix program to print directory structure, opendir(), readdir()