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 \n" );
scanf ( "%s" , filename);
// Open file
fptr = fopen (filename, "r" );
if (fptr == NULL)
{
printf ( "Cannot open file \n" );
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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