#include int main() { FILE *infile; char c, infilename[25], inputline[100]; int line = 1; printf("Enter input file name ----> "); scanf("%s", infilename); infile = fopen(infilename, "r"); printf("%5d", line); do { c = fgets(inputline, 100, infile); /* read a line */ if (c != NULL) { printf("%5d %s", line, inputline); line++; } } while (c != NULL); fclose(infile); return 0; } /* Result of execution (You will get a listing of the file on the monitor with line numbers) */