fopen() is used to open and fclose() is used to close a file in C
#include <stdio.h> #include <stdlib.h> // For exit() int main() { FILE *fptr; char filename[100], c; printf("Enter the filename to open
"); scanf("%s", filename); // Open file fptr = fopen(filename, "r"); if (fptr == NULL) { printf("Cannot open file
"); exit(0); } // Read contents from file c = fgetc(fptr); while (c != EOF) { printf ("%c", c); c = fgetc(fptr); } fclose(fptr); return 0; } |
Output:
Enter the filename to open a.txt /*Contents of a.txt*/
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