09-20-2005
You can use fgets() in a loop:
char *fgets(char *s, int n, FILE *stream);
The fgets() function reads characters from the stream into the array pointed to by s, until n-1 characters are read, or a newline character is read and transferred to s, or an end-of-file condition is encountered.
If you want to go to Nth line use fgets() N times. and at the end you can go back to the start of the file using fseek() to start a new read.
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Alternatively you can use combination of head and tail unix commands in shell script to solve your problem.
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GETS(3) Linux Programmer's Manual GETS(3)
NAME
fgetc, fgets, getc, getchar, gets, ungetc - input of characters and strings
SYNOPSIS
#include <stdio.h>
int fgetc(FILE *stream);
char *fgets(char *s, int size, FILE *stream);
int getc(FILE *stream);
int getchar(void);
char *gets(char *s);
int ungetc(int c, FILE *stream);
DESCRIPTION
fgetc() reads the next character from stream and returns it as an unsigned char cast to an int, or EOF on end of file or error.
getc() is equivalent to fgetc() except that it may be implemented as a macro which evaluates stream more than once.
getchar() is equivalent to getc(stdin).
gets() reads a line from stdin into the buffer pointed to by s until either a terminating newline or EOF, which it replaces with '