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Get file name from command line and open the file

#include <stdio.h> #include <stdlib.h> int main(void) {   FILE *fp;   char fname[128];   printf("Enter filename: ");   gets(fname);   if((fp=fopen(fname, "r"))==NULL) {     printf("Cannot open file.\n");     exit(1);   }   fclose(fp);   return 0; }