File I/O : C Language Tutorial

fopen - open a file
fclose - close an open file
fread - read from a file
fwrite - write to a file
fseek/fsetpos - move a file pointer to somewhere in a file.
ftell/fgetpos - file pointer location.

To open a file you need to use the fopen function, which returns a FILE pointer as stated above.

fclose returns zero if the file is closed properly.

Example:-

FILE *fp;
fp=fopen("c:\\new.txt", "w");
fprintf(fp, "New...\n");

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