il suffit d inclure au début du programme ./nom01<nom02.dat
cat fichier | ./programme
./programme < fichier
include int main() { std::string line; int nb = 0; while (std::getline(std::cin, line)) std::cout << ++nb << ": " << line << std::endl; return 0; }
g++ -W -Wall -Wabi -pedantic catline.cc -o catline
cat catline.cc | ./catline
1: #include
2:
3: int main()
4: {
5: std::string line;
6: int nb = 0;
7:
8: while (std::getline(std::cin, line))
9: std::cout << ++nb << ": " << line << std::endl;
10:
11: return 0;
12: }