i need 2 small functions to be written using system calls and I/O

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Pratik · Accepted Answer

/**
The end command prints the last n (default 5) lines
of a file to the console
Use as ./end filename [n]
*/
#include 
#include 
#include 
#include 
#ifndef BUF_LEN
#define BUF_LEN 10
#endif
void print_usage()
{
	char *msg = "Usage : ./end filename [n] 
       Example : ./end Hello.txt 15
Note : [n] should be more than 10 
";

i need 2 small functions to be written using system calls and I/O

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