## Low Level

CURDIR() | Returns the current OS directory name.
DIRCHANGE() | Changes the directory
DIRREMOVE() | Attempt to remove an directory
DISKSPACE() | Get the amount of space available on a disk
FCLOSE() | Closes an open file
FCREATE() | Creates a file.
FERASE() | Erase a file from disk
FERROR() | Reports the error status of low-level file functions
FOPEN() | Open a file.
FREAD() | Reads a specified number of bytes from a file.
FREADSTR() | Reads a string from a file.
FSEEK() | Positions the file pointer in a file.
FWRITE() | Writes characters to a file.
HB_DISKSPACE() | Get the amount of space available on a disk
HB_FEOF() | Check for end-of-file.
ISDISK() | Verify if a drive is ready
MAKEDIR() | Create a new directory