A program to display output in a file not on command line

/*In this program i will explain how output could be displayed into another file instead of command line*/

#include"header.h"//"" represent that it 1st find this header file in current directory & then go to search in standard path

int main()

{

int dis,fd,wfd,count;

char buff2[9];

close(1);//close the file descripter where stdout file is opened ..bcz through stdout stream ..output will goto

//command line ...so closing fd=1 ..output will not go to command line instead of it..output will goto file opened on same fd...means exactly next file opened after closing this fd=1

dis=open("display",O_RDWR|O_CREAT);//creates dest....output will goto this file whose name is also display

//lseek(fd,0,0);

fd=open("dest",O_RDWR|O_CREAT);//creates dest....this fd=3..

printf("\nfd=%d",fd);

//close(1);

//dis=open("display",O_RDWR|O_CREAT);//creates dest....write into it...fd.

count=read(fd,buff2,8);//using read sys. call data frm fd into buff2 is written

printf("\nbuff2=%s",buff2);//will goto display file not command line

printf("HELLO EMBLOGIC");//will goto display file

wfd=open("text",O_WRONLY|O_CREAT);

//printf("buff2=%s",buff2);

count=write(wfd,buff2,8);//data frm buff2 into wfd is written into file opened at this wfd i.e. text

printf("\nfd=%d",fd);//will goto display file

return 0;

}

/*diplay file*/

fd=3

buff2=HELLO EMBLOGIC