C PROGRAMMING: Write some code that prints out the last N lines of a given file

Question

C PROGRAMMING:

Write some code that prints out the last N lines of a given file

   Arguments to your program will be passed on the command line in the following order

       1. Name of the file

       2. N

   N will always be at least 1

   If N is greater than the number of lines in the file, all of the lines in the file should be displayed

   You may assume that no line is longer than 100 characters

       For an additional challenge try to solve the problem where there is no limit on the length            of a line

           solution to dealing with any length lines can involve using the functions ftell      and fseek.

   There is no limit to the number of lines in a file

   Some lines may only contain the newline character, these still count as a line

   My editor automatically added 2 newline characters to the ends of most of the test files but does    not display them. Your editor may or may not display them but do be aware that they are there.

Example. Assume the file meme.txt contains the following

It

is

over 9000!!!

1../tail.out 1 over 9000!!!

2../tail.out 2 is

over 9000!!! 3../tail.out 10

It

is

over 9000!!!

Explanation / Answer

#include #include #include #include #include #include #include #include "fileOperating.h" #include void createFile(char * fileName) { FILE * myfile=fopen(fileName, "w+"); fclose(myfile); } void emptyFile(char * fileName) { FILE * myfile=fopen(fileName, "w+"); fclose(myfile); } int searchStrInFile(char * FileName,char * searchstr) { int len1=0; int *loc= findAllLine(FileName,&len1); int count=0; char * str; int start; int len; int lineLen=0; int findLine=-1; while(count

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