#include #include #include main ( ) { int fd, i, j, k ; if ( ( fd = open ( "abc" , O_CREAT|O_TRUNC|O_RDWR, 0666 ) ) == -1 ) { write ( 2, "Cannot open file abc \n",24 ); exit (1) ; } k = dup ( fd ) ; write( fd, "I AM STUDENT ", 13); write( k, "AT FMI", 6); }