Finally, if you are interested in the size of the disk and the free space, you can use the following functions:


disk_size(drive) Returns the size of the indicated drive in bytes. drive must be a capital letter, e.g. 'C'. If you do not provide the drive, the drive of the current working directory is used.
disk_free(drive) Returns the amount of free space on the indicated drive in bytes. drive must be a capital letter, e.g. 'C'. If you do not provide the drive, the drive of the current working directory is used.