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The C programming language made simple

What are command line arguments (argc and argv)?

#include <stdio.h> #include <stdlib.h> #include <string.h> int main(int argc, char* argv[]) { int i; for (i = 0; i < argc; i++) { printf("argv[%d]: %s\n", i, argv[i]); } int result = 1; for (i = 1; i < argc; i++) { int x = strtol(argv[i], NULL, 10); result = result * x; } printf("Multiplication result is %d\n", result); return 0; }