Here is source code of the C++ program which counts the number of lines in a file. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.
* C++ Program to Count lines in a file
using namespace std;
int count = 0;
/* Creating input filestream */
while (getline(file, line))
cout << "Numbers of lines in the file : " << count << endl;
$ g++ main.cpp $ ./a.out Numbers of lines in the file : 21
Sanfoundry Global Education & Learning Series – 1000 C++ Programs.