Answer to Question #314537 in C++ for zxc

Question

Using exec system call list all the files and directories of home then

store the result in “output1.txt”. Run a second command “grep” and find

the word “output1.txt” in all the text files of the home also place the home

path in the “PATH” environment variable while doing exec for grep. This all

will be done in one process.

Answer 1

	if (fs.peek() == EOF)
				{
					cout << "File BD empty" << endl;
					BackEvent(enter3, logos, ftr, colorF, colorW);
					cin >> enter1;
					fs.close();
				}
				else
				{
					while (!fs.eof())
					{

						data[i] = (char*)malloc(sizeof(char) * size);
						fs >> data[i] >> ch;
						if (i > 0)
						{
							ster = ch + data[i];
							data[i] = ster;
						}
						ce = ch;
						cout << data[i] << "\0" << endl;
						i++;
						if (i > 0)
						{
							data.push_back("");
						}
					}


					cin >> loaddata;


					fe.open(data[loaddata]);


					while (fe.peek() == EOF)
					{
						cout << "File " << data[i] << "empty or does not exist!" << endl;
						BackEvent(enter3, logos, ftr, colorF, colorW);
						cin >> enter1;
					}


					while (!fe.eof())
					{
						msg = "";
						getline(fe, msg);


						cout << msg << endl;
}